Signed-off-by: Xing Gu <gux.f...@cn.fujitsu.com>
---
.../kernel/power_management/cpu_consolidation.py | 145 ----
.../kernel/power_management/get_sched_values.c | 50 --
testcases/kernel/power_management/ilb_test.py | 59 --
.../kernel/power_management/lib/pm_sched_mc.py | 872 +++++++++++++++++++++
testcases/kernel/power_management/lib/sched_mc.py | 872 ---------------------
.../power_management/pm_cpu_consolidation.py | 145 ++++
.../kernel/power_management/pm_get_sched_values.c | 50 ++
testcases/kernel/power_management/pm_ilb_test.py | 59 ++
.../kernel/power_management/pm_sched_domain.py | 56 ++
testcases/kernel/power_management/runpwtests05.sh | 6 +-
.../power_management/runpwtests_exclusive01.sh | 4 +-
.../power_management/runpwtests_exclusive02.sh | 2 +-
.../power_management/runpwtests_exclusive03.sh | 4 +-
.../power_management/runpwtests_exclusive04.sh | 4 +-
.../power_management/runpwtests_exclusive05.sh | 4 +-
testcases/kernel/power_management/sched_domain.py | 56 --
16 files changed, 1194 insertions(+), 1194 deletions(-)
delete mode 100755 testcases/kernel/power_management/cpu_consolidation.py
delete mode 100644 testcases/kernel/power_management/get_sched_values.c
delete mode 100755 testcases/kernel/power_management/ilb_test.py
create mode 100755 testcases/kernel/power_management/lib/pm_sched_mc.py
delete mode 100755 testcases/kernel/power_management/lib/sched_mc.py
create mode 100755 testcases/kernel/power_management/pm_cpu_consolidation.py
create mode 100644 testcases/kernel/power_management/pm_get_sched_values.c
create mode 100755 testcases/kernel/power_management/pm_ilb_test.py
create mode 100755 testcases/kernel/power_management/pm_sched_domain.py
delete mode 100755 testcases/kernel/power_management/sched_domain.py
diff --git a/testcases/kernel/power_management/cpu_consolidation.py
b/testcases/kernel/power_management/cpu_consolidation.py
deleted file mode 100755
index 992a745..0000000
--- a/testcases/kernel/power_management/cpu_consolidation.py
+++ /dev/null
@@ -1,145 +0,0 @@
-#!/usr/bin/python
-''' This Python script interprets various sched stats values.
- Validates cpu consolidation for given sched_mc_power_saving value
-'''
-
-import os
-import sys
-import time
-LIB_DIR = "%s/lib" % os.path.dirname(__file__)
-sys.path.append(LIB_DIR)
-from optparse import OptionParser
-from sched_mc import *
-
-__author__ = "Poornima Nayak <mpna...@linux.vnet.ibm.com>"
-
-class Usage(Exception):
- def __init__(self, msg):
- self.msg = msg
-
-def main(argv=None):
- if argv is None:
- argv = sys.argv
-
- usage = "-w"
- parser = OptionParser(usage)
- parser.add_option("-v", "--variation_test", dest="vary_mc_smt",
- default=False, action="store_true", help="Vary sched_mc & sched_smt. \
- -c and -t inputs are initial value of sched_mc & sched_smt")
- parser.add_option("-c", "--mc_value", dest="mc_value",
- default=0, help="Sched mc power saving value 0/1/2")
- parser.add_option("-t", "--smt_value", dest="smt_value",
- default=0, help="Sched smt power saving value 0/1/2")
- parser.add_option("-w", "--workload", dest="work_ld",
- default="ebizzy", help="Workload can be ebizzy/kernbench")
- parser.add_option("-s", "--stress", dest="stress",
- default="partial", help="Load on system is full/partial [i.e
50%]/thread")
- parser.add_option("-p", "--performance", dest="perf_test",
- default=False, action="store_true", help="Enable performance test")
- (options, args) = parser.parse_args()
-
- try:
- count_num_cpu()
- count_num_sockets()
- if is_hyper_threaded():
- generate_sibling_list()
-
- # User should set option -v to test cpu consolidation
- # resets when sched_mc &(/) sched_smt is disabled when
- # workload is already running in the system
-
- if options.vary_mc_smt:
-
- # Since same code is used for testing package consolidation and
core
- # consolidation is_multi_socket & is_hyper_threaded check is done
- if is_multi_socket() and is_multi_core() and options.mc_value:
- set_sched_mc_power(options.mc_value)
-
- if is_hyper_threaded() and options.smt_value:
- set_sched_smt_power(options.smt_value)
-
- #Generate arguments for trigger workload, run workload in
background
- map_cpuid_pkgid()
- background="yes"
- duration=360
- pinned="no"
- if int(options.mc_value) < 2 and int(options.smt_value) < 2:
- trigger_ebizzy (options.smt_value, "partial", duration,
background, pinned)
- work_ld="ebizzy"
- #Wait for 120 seconds and then validate cpu consolidation works
- #When sched_mc & sched_smt is set
- import time
- time.sleep(120)
- else:
- #Wait for 120 seconds and then validate cpu consolidation works
- #When sched_mc & sched_smt is set
- trigger_kernbench (options.smt_value, "partial", background,
pinned, "no")
- work_ld="kernbench"
- import time
- time.sleep(300)
-
- generate_report()
- status = validate_cpu_consolidation("partial", work_ld,
options.mc_value, options.smt_value)
- if status == 0:
- print "INFO: Consolidation worked sched_smt &(/) sched_mc is
set"
- #Disable sched_smt & sched_mc interface values
- if options.vary_mc_smt and options.mc_value > 0:
- set_sched_mc_power(0)
- mc_value = options.mc_value
- else:
- mc_value = 0
- if options.vary_mc_smt and options.smt_value > 0 and
is_hyper_threaded():
- set_sched_smt_power(0)
- smt_value = options.smt_value
- else:
- smt_value = 0
-
- if work_ld == "kernbench":
- time.sleep(240)
- else:
- time.sleep(120)
-
- generate_report()
- status = validate_cpu_consolidation("partial", work_ld,
mc_value, smt_value)
- if background == "yes":
- stop_wkld(work_ld)
- #CPU consolidation should fail as sched_mc &(/) sched_smt is
disabled
- if status == 1:
- return(0)
- else:
- return(1)
- else:
- print "INFO: CPU consolidation failed when sched_mc &(/) \
-sched_smt was enabled. This is pre-requisite to proceed"
- return(status)
- else:
- #The else part of the code validates behaviour of sched_mc
- # and sched_smt set to 0, 1 & 2
- if is_multi_socket():
- set_sched_mc_power(options.mc_value)
- if is_hyper_threaded():
- set_sched_smt_power(options.smt_value)
- map_cpuid_pkgid()
- print "INFO: Created table mapping cpu to package"
- background="no"
- duration=60
- pinned ="no"
-
- if options.perf_test:
- perf_test="yes"
- else:
- perf_test="no"
-
- trigger_workld( options.smt_value, options.work_ld,
options.stress, duration, background, pinned, perf_test)
- generate_report()
- status = validate_cpu_consolidation(options.stress,
options.work_ld,options.mc_value, options.smt_value)
- reset_schedmc()
- if is_hyper_threaded():
- reset_schedsmt()
- return(status)
- except Exception, details:
- print "INFO: CPU consolidation failed", details
- return(1)
-
-if __name__ == "__main__":
- sys.exit(main())
diff --git a/testcases/kernel/power_management/get_sched_values.c
b/testcases/kernel/power_management/get_sched_values.c
deleted file mode 100644
index 328e682..0000000
--- a/testcases/kernel/power_management/get_sched_values.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/************************************************************************
-* Copyright (c) International Business Machines Corp., 2008
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation; either version 2 of the License, or
-* (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
-* the GNU General Public License for more details.
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
-*
-***************************************************************************/
-#include <stdio.h>
-#include "test.h"
-
-const char *TCID = "get_sched_values";
-
-int get_supp_sched_mc(void)
-{
- if (tst_kvercmp(2, 6, 29) < 0)
- return 1;
- else
- return 2;
-}
-
-int get_supp_sched_smt(void)
-{
- if (tst_kvercmp(2, 6, 29) < 0)
- return 1;
- else
- return 2;
-}
-
-int main(int argc, char **argv)
-{
- char *param;
- if (argc == 0)
- return 1;
- else {
- param = argv[1];
- if (strcmp(param, "sched_mc") == 0)
- return (get_supp_sched_mc());
- if (strcmp(param, "sched_smt") == 0)
- return (get_supp_sched_smt());
- }
-}
diff --git a/testcases/kernel/power_management/ilb_test.py
b/testcases/kernel/power_management/ilb_test.py
deleted file mode 100755
index cec0b29..0000000
--- a/testcases/kernel/power_management/ilb_test.py
+++ /dev/null
@@ -1,59 +0,0 @@
-#!/usr/bin/python
-''' This Python script interprets interrupt values.
- Validates Ideal load balancer runs in same package where workload is
running
-'''
-
-import os
-import sys
-LIB_DIR = "%s/lib" % os.path.dirname(__file__)
-sys.path.append(LIB_DIR)
-from optparse import OptionParser
-from sched_mc import *
-
-__author__ = "Poornima Nayak <mpna...@linux.vnet.ibm.com>"
-
-class Usage(Exception):
- def __init__(self, msg):
- self.msg = msg
-
-def main(argv=None):
- if argv is None:
- argv = sys.argv
-
- usage = "-w"
- parser = OptionParser(usage)
- parser.add_option("-c", "--mc_level", dest="mc_level",
- default=0, help="Sched mc power saving value 0/1/2")
- parser.add_option("-t", "--smt_level", dest="smt_level",
- default=0, help="Sched smt power saving value 0/1/2")
- parser.add_option("-w", "--workload", dest="work_ld",
- default="ebizzy", help="Workload can be ebizzy/kernbench")
- (options, args) = parser.parse_args()
-
- try:
- count_num_cpu()
- count_num_sockets()
- if is_multi_socket():
- set_sched_mc_power(options.mc_level)
- if is_hyper_threaded():
- set_sched_smt_power(options.smt_level)
- map_cpuid_pkgid()
- print "INFO: Created table mapping cpu to package"
- background="no"
- duration=120
- pinned="yes"
-
- trigger_workld(options.smt_level,options.work_ld, "single_job",
duration, background, pinned, "no")
- generate_loc_intr_report()
- status = validate_ilb(options.mc_level, options.smt_level)
- reset_schedmc()
- if is_hyper_threaded():
- reset_schedsmt()
- return(status)
-
- except Exception, details:
- print "INFO: Idle Load Balancer test failed", details
- return(1)
-
-if __name__ == "__main__":
- sys.exit(main())
diff --git a/testcases/kernel/power_management/lib/pm_sched_mc.py
b/testcases/kernel/power_management/lib/pm_sched_mc.py
new file mode 100755
index 0000000..24285eb
--- /dev/null
+++ b/testcases/kernel/power_management/lib/pm_sched_mc.py
@@ -0,0 +1,872 @@
+#!/usr/bin/python
+''' Reusable functions related to sched mc FVT are put together
+'''
+
+import os
+import sys
+import re
+from time import time
+
+__author__ = "Vaidyanathan Srinivasan <sva...@linux.vnet.ibm.com>"
+__author__ = "Poornima Nayak <mpna...@linux.vnet.ibm.com>"
+
+
+cpu_map = {}
+stats_start = {}
+stats_stop = {}
+stats_percentage = {}
+intr_start = []
+intr_stop = []
+cpu_count = 0
+socket_count = 0
+cpu1_max_intr = 0
+cpu2_max_intr = 0
+intr_stat_timer_0 = []
+siblings_list = []
+
+def clear_dmesg():
+ '''
+ Clears dmesg
+ '''
+ try:
+ os.system('dmesg -c >/dev/null')
+ except OSError, e:
+ print 'Clearing dmesg failed', e
+ sys.exit(1)
+
+def count_num_cpu():
+ ''' Returns number of cpu's in system
+ '''
+ try:
+ cpuinfo = open('/proc/cpuinfo', 'r')
+ global cpu_count
+ for line in cpuinfo:
+ if line.startswith('processor'):
+ cpu_count += 1
+ cpuinfo.close()
+ except IOError, e:
+ print "Could not get cpu count", e
+ sys.exit(1)
+
+def count_num_sockets():
+ ''' Returns number of cpu's in system
+ '''
+ socket_list = []
+ global socket_count
+ try:
+ for i in range(0, cpu_count):
+ phy_pkg_file = '/sys/devices/system/cpu/cpu%s' % i
+ phy_pkg_file += '/topology/physical_package_id'
+ socket_id = open(phy_pkg_file).read().rstrip()
+ if socket_id not in socket_list:
+ socket_list.append(socket_id)
+ socket_count = socket_count + 1
+ except Exception, details:
+ print "INFO: Failed to get number of sockets in system", details
+ sys.exit(1)
+
+def is_multi_socket():
+ '''Return 1 if the system is multi socket else return 0
+ '''
+ try:
+ if socket_count > 1:
+ return 1
+ else:
+ return 0
+ except Exception:
+ print "Failed to check if system is multi socket system"
+ sys.exit(1)
+
+def is_hyper_threaded():
+ '''Return 1 if the system is hyper threaded else return 0
+ '''
+ try:
+ file_cpuinfo = open("/proc/cpuinfo", 'r')
+ for line in file_cpuinfo:
+ if line.startswith('siblings'):
+ siblings = line.split(":")
+ if line.startswith('cpu cores'):
+ cpu_cores = line.split(":")
+ break
+ if int( siblings[1] ) / int( cpu_cores[1] )> 1:
+ file_cpuinfo.close()
+ return 1
+ else:
+ return 0
+ except Exception:
+ print "Failed to check if system is hyper-threaded"
+ sys.exit(1)
+
+def is_multi_core():
+ ''' Return true if system has sockets has multiple cores
+ '''
+
+ try:
+ file_cpuinfo = open("/proc/cpuinfo", 'r')
+ for line in file_cpuinfo:
+ if line.startswith('siblings'):
+ siblings = line.split(":")
+ if line.startswith('cpu cores'):
+ cpu_cores = line.split(":")
+ break
+
+ if int( siblings[1] ) == int( cpu_cores[1] ):
+ if int( cpu_cores[1] ) > 1:
+ multi_core = 1
+ else:
+ multi_core = 0
+ else:
+ num_of_cpus = int(siblings[1]) / int(cpu_cores[1])
+ if num_of_cpus > 1:
+ multi_core = 1
+ else:
+ multi_core = 0
+ file_cpuinfo.close()
+ return multi_core
+ except Exception:
+ print "Failed to check if system is multi core system"
+ sys.exit(1)
+
+def get_hyper_thread_count():
+ ''' Return number of threads in CPU. For eg for x3950 this function
+ would return 2. In future if 4 threads are supported in CPU, this
+ routine would return 4
+ '''
+ try:
+ file_cpuinfo = open("/proc/cpuinfo", 'r')
+ for line in file_cpuinfo:
+ if line.startswith('siblings'):
+ siblings = line.split(":")
+ if line.startswith('cpu cores'):
+ cpu_cores = line.split(":")
+ break
+ return( int( siblings[1] ) / int( cpu_cores[1] ) )
+ except Exception:
+ print "Failed to check if system is hyper-threaded"
+ sys.exit(1)
+
+def map_cpuid_pkgid():
+ ''' Routine to map physical package id to cpu id
+ '''
+ if is_hyper_threaded():
+ core_info = {}
+ try:
+ for i in range(0, cpu_count):
+ phy_pkg_file = '/sys/devices/system/cpu/cpu%s' % i
+ phy_pkg_file += '/topology/physical_package_id'
+ core_file = '/sys/devices/system/cpu/cpu%s' % i
+ core_file += '/topology/core_id'
+ core_id = open(core_file).read().rstrip()
+ cpu_phy_id = open(phy_pkg_file).read().rstrip()
+ if not cpu_phy_id in cpu_map.keys():
+ core_info = {}
+ else:
+ core_info = cpu_map[cpu_phy_id]
+ if not core_id in core_info.keys():
+ core_info[core_id] = [i]
+ else:
+ core_info[core_id].append(i)
+ cpu_map[cpu_phy_id] = core_info
+ except Exception, details:
+ print "Package, core & cpu map table creation failed", e
+ sys.exit(1)
+ else:
+ for i in range(0, cpu_count):
+ try:
+ phy_pkg_file = '/sys/devices/system/cpu/cpu%s' %i
+ phy_pkg_file += '/topology/physical_package_id'
+ cpu_phy_id = open(phy_pkg_file).read().rstrip()
+ if not cpu_phy_id in cpu_map.keys():
+ cpu_map[cpu_phy_id] = [i]
+ else:
+ cpu_map[cpu_phy_id].append(i)
+ except IOError, e:
+ print "Mapping of CPU to pkg id failed", e
+ sys.exit(1)
+
+
+def generate_sibling_list():
+ ''' Routine to generate siblings list
+ '''
+ try:
+ for i in range(0, cpu_count):
+ siblings_file = '/sys/devices/system/cpu/cpu%s' % i
+ siblings_file += '/topology/thread_siblings_list'
+ threads_sibs = open(siblings_file).read().rstrip()
+ thread_ids = threads_sibs.split("-")
+
+ if not thread_ids in siblings_list:
+ siblings_list.append(thread_ids)
+ except Exception, details:
+ print "Exception in generate_siblings_list", details
+ sys.exit(1)
+
+def get_siblings(cpu_id):
+ ''' Return siblings of cpu_id
+ '''
+ try:
+ cpus = ""
+ for i in range(0, len(siblings_list)):
+ for cpu in siblings_list[i]:
+ if cpu_id == cpu:
+ for j in siblings_list[i]:
+ # Exclude cpu_id in the list of siblings
+ if j != cpu_id:
+ cpus += j
+ return cpus
+ return cpus
+ except Exception, details:
+ print "Exception in get_siblings", details
+ sys.exit(1)
+
+def get_proc_data(stats_list):
+ ''' Read /proc/stat info and store in dictionary
+ '''
+ try:
+ file_procstat = open("/proc/stat", 'r')
+ for line in file_procstat:
+ if line.startswith('cpu'):
+ data = line.split()
+ stats_list[data[0]] = data
+ file_procstat.close()
+ except OSError, e:
+ print "Could not read statistics", e
+ sys.exit(1)
+
+def get_proc_loc_count(loc_stats):
+ ''' Read /proc/interrupts info and store in list
+ '''
+ try:
+ file_procstat = open("/proc/interrupts", 'r')
+ for line in file_procstat:
+ if line.startswith(' LOC:') or line.startswith('LOC:'):
+ data = line.split()
+ for i in range(0, cpu_count):
+ # To skip LOC
+ loc_stats.append(data[i+1])
+ file_procstat.close()
+ return
+ except Exception, details:
+ print "Could not read interrupt statistics", details
+ sys.exit(1)
+
+
+def set_sched_mc_power(sched_mc_level):
+ ''' Routine to set sched_mc_power_savings to required level
+ '''
+ try:
+ os.system('echo %s > \
+ /sys/devices/system/cpu/sched_mc_power_savings 2>/dev/null'
+ % sched_mc_level)
+
+ get_proc_data(stats_start)
+ except OSError, e:
+ print "Could not set sched_mc_power_savings to", sched_mc_level, e
+ sys.exit(1)
+
+def set_sched_smt_power(sched_smt_level):
+ ''' Routine to set sched_smt_power_savings to required level
+ '''
+ try:
+ os.system('echo %s > \
+ /sys/devices/system/cpu/sched_smt_power_savings 2>/dev/null'
+ % sched_smt_level)
+
+ get_proc_data(stats_start)
+ except OSError, e:
+ print "Could not set sched_smt_power_savings to", sched_smt_level, e
+ sys.exit(1)
+
+def set_timer_migration_interface(value):
+ ''' Set value of timer migration interface to a value
+ passed as argument
+ '''
+ try:
+ os.system('echo %s > \
+ /proc/sys/kernel/timer_migration 2>/dev/null' % value)
+ except OSError, e:
+ print "Could not set timer_migration to ", value, e
+ sys.exit(1)
+
+def get_job_count(stress, workload, sched_smt):
+ ''' Returns number of jobs/threads to be triggered
+ '''
+
+ try:
+ if stress == "thread":
+ threads = get_hyper_thread_count()
+ if stress == "partial":
+ threads = cpu_count / socket_count
+ if is_hyper_threaded():
+ if workload == "ebizzy" and int(sched_smt) ==0:
+ threads = threads / get_hyper_thread_count()
+ if workload == "kernbench" and int(sched_smt) < 2:
+ threads = threads / get_hyper_thread_count()
+ if stress == "full":
+ threads = cpu_count
+ if stress == "single_job":
+ threads = 1
+ duration = 180
+ return threads
+ except Exception, details:
+ print "get job count failed ", details
+ sys.exit(1)
+
+def trigger_ebizzy (sched_smt, stress, duration, background, pinned):
+ ''' Triggers ebizzy workload for sched_mc=1
+ testing
+ '''
+ try:
+ threads = get_job_count(stress, "ebizzy", sched_smt)
+ workload = "ebizzy"
+ olddir = os.getcwd()
+ installdir = '%s/utils/benchmark' % os.environ['LTPROOT']
+ if os.path.exists(installdir):
+ path = '%s/utils/benchmark' % os.environ['LTPROOT']
+ os.chdir(path)
+ wklds_avlbl = list()
+ workload_dir = ""
+
+ # Use the latest version of similar workload available
+ for file_name in os.listdir('.'):
+ if file_name.find(workload) != -1:
+ wklds_avlbl.append(file_name)
+
+ wklds_avlbl.sort()
+ workload_dir = wklds_avlbl[len(wklds_avlbl)-1]
+ if workload_dir != "":
+ new_path = os.path.join(path,"%s" % workload_dir)
+ os.chdir(new_path)
+ else:
+ print "INFO: ebizzy benchmark not found"
+ sys.exit(1)
+ else:
+ path = '%s/testcases/bin' % os.environ['LTPROOT']
+ os.chdir(path)
+ workload_file = ""
+ for file_name in os.listdir('.'):
+ if file_name == workload:
+ workload_file = file_name
+ break
+ if workload_file == "":
+ print "INFO: ebizzy benchmark not found"
+ sys.exit(1)
+ get_proc_data(stats_start)
+ get_proc_loc_count(intr_start)
+ try:
+ if background == "yes":
+ succ = os.system('./ebizzy -t%s -s4096 -S %s >/dev/null &'
+ % (threads, duration))
+ else:
+ if pinned == "yes":
+ succ = os.system('taskset -c %s ./ebizzy -t%s -s4096 -S %s
>/dev/null'
+ % (cpu_count -1, threads, duration))
+ else:
+ succ = os.system('./ebizzy -t%s -s4096 -S %s >/dev/null'
+ % (threads, duration))
+
+ if succ == 0:
+ print "INFO: ebizzy workload triggerd"
+ os.chdir(olddir)
+ #Commented bcoz it doesnt make sense to capture it when
workload triggered
+ #in background
+ #get_proc_loc_count(intr_stop)
+ #get_proc_data(stats_stop)
+ else:
+ print "INFO: ebizzy workload triggerd failed"
+ os.chdir(olddir)
+ sys.exit(1)
+ except Exception, details:
+ print "Ebizzy workload trigger failed ", details
+ sys.exit(1)
+ except Exception, details:
+ print "Ebizzy workload trigger failed ", details
+ sys.exit(1)
+
+def trigger_kernbench (sched_smt, stress, background, pinned, perf_test):
+ ''' Trigger load on system like kernbench.
+ Copys existing copy of LTP into as LTP2 and then builds it
+ with make -j
+ '''
+ olddir = os.getcwd()
+ try:
+ threads = get_job_count(stress, "kernbench", sched_smt)
+
+ dst_path = "/root"
+ workload = "kernbench"
+ olddir = os.getcwd()
+ installdir = '%s/utils/benchmark' % os.environ['LTPROOT']
+ if os.path.exists(installdir):
+ path = '%s/utils/benchmark' % os.environ['LTPROOT']
+ os.chdir(path)
+ wklds_avlbl = list()
+ workload_dir = ""
+ for file_name in os.listdir('.'):
+ if file_name.find(workload) != -1:
+ wklds_avlbl.append(file_name)
+ if len(wklds_avlbl):
+ wklds_avlbl.sort()
+ workload_dir = wklds_avlbl[len(wklds_avlbl)-1]
+ if workload_dir != "":
+ benchmark_path = os.path.join(path,"%s" % workload_dir)
+ else:
+ print "INFO: kernbench benchmark not found"
+ sys.exit(1)
+ else:
+ path = '%s/testcases/bin' % os.environ['LTPROOT']
+ os.chdir(path)
+ workload_file = ""
+ for file_name in os.listdir('.'):
+ if file_name == workload:
+ workload_file = file_name
+ break
+ if workload_file != "":
+ benchmark_path = path
+ else:
+ print "INFO: kernbench benchmark not found"
+ sys.exit(1)
+
+ os.chdir(dst_path)
+ linux_source_dir=""
+ for file_name in os.listdir('.'):
+ if file_name.find("linux-2.6") != -1 and os.path.isdir(file_name):
+ linux_source_dir=file_name
+ break
+ if linux_source_dir != "":
+ os.chdir(linux_source_dir)
+ else:
+ print "INFO: Linux kernel source not found in /root. Workload\
+ Kernbench cannot be executed"
+ sys.exit(1)
+
+ get_proc_data(stats_start)
+ get_proc_loc_count(intr_start)
+ if pinned == "yes":
+ os.system ( 'taskset -c %s %s/kernbench -o %s -M -H -n 1 \
+ >/dev/null 2>&1 &' % (cpu_count-1, benchmark_path, threads))
+
+ # We have to delete import in future
+ import time
+ time.sleep(240)
+ stop_wkld("kernbench")
+ else:
+ if background == "yes":
+ os.system ( '%s/kernbench -o %s -M -H -n 1 >/dev/null 2>&1 &' \
+ % (benchmark_path, threads))
+ else:
+ if perf_test == "yes":
+ os.system ( '%s/kernbench -o %s -M -H -n 1 >/dev/null
2>&1' \
+ % (benchmark_path, threads))
+ else:
+ os.system ( '%s/kernbench -o %s -M -H -n 1 >/dev/null 2>&1
&' \
+ % (benchmark_path, threads))
+ # We have to delete import in future
+ import time
+ time.sleep(240)
+ stop_wkld("kernbench")
+
+ print "INFO: Workload kernbench triggerd"
+ os.chdir(olddir)
+ except Exception, details:
+ print "Workload kernbench trigger failed ", details
+ sys.exit(1)
+
+def trigger_workld(sched_smt, workload, stress, duration, background, pinned,
perf_test):
+ ''' Triggers workload passed as argument. Number of threads
+ triggered is based on stress value.
+ '''
+ try:
+ if workload == "ebizzy":
+ trigger_ebizzy (sched_smt, stress, duration, background, pinned)
+ if workload == "kernbench":
+ trigger_kernbench (sched_smt, stress, background, pinned,
perf_test)
+ except Exception, details:
+ print "INFO: Trigger workload failed", details
+ sys.exit(1)
+
+def generate_report():
+ ''' Generate report of CPU utilization
+ '''
+ cpu_labels = ('cpu', 'user', 'nice', 'system', 'idle', 'iowait', 'irq',
+ 'softirq', 'x', 'y')
+ if (not os.path.exists('/procstat')):
+ os.mkdir('/procstat')
+
+ get_proc_data(stats_stop)
+
+ reportfile = open('/procstat/cpu-utilisation', 'a')
+ debugfile = open('/procstat/cpu-utilisation.debug', 'a')
+ for l in stats_stop:
+ percentage_list = []
+ total = 0
+ for i in range(1, len(stats_stop[l])):
+ stats_stop[l][i] = int(stats_stop[l][i]) - int(stats_start[l][i])
+ total += stats_stop[l][i]
+ percentage_list.append(l)
+ for i in range(1, len(stats_stop[l])):
+ percentage_list.append(float(stats_stop[l][i])*100/total)
+
+ stats_percentage[l] = percentage_list
+
+ for i in range(0, len(cpu_labels)):
+ print >> debugfile, cpu_labels[i], '\t',
+ print >> debugfile
+ for l in sorted(stats_stop.keys()):
+ print >> debugfile, l, '\t',
+ for i in range(1, len(stats_stop[l])):
+ print >> debugfile, stats_stop[l][i], '\t',
+ print >> debugfile
+
+ for i in range(0, len(cpu_labels)):
+ print >> reportfile, cpu_labels[i], '\t',
+ print >> reportfile
+ for l in sorted(stats_percentage.keys()):
+ print >> reportfile, l, '\t',
+ for i in range(1, len(stats_percentage[l])):
+ print >> reportfile, " %3.4f" % stats_percentage[l][i],
+ print >> reportfile
+
+ #Now get the package ID information
+ try:
+ print >> debugfile, "cpu_map: ", cpu_map
+ keyvalfile = open('/procstat/keyval', 'a')
+ print >> keyvalfile, "nr_packages=%d" % len(cpu_map)
+ print >> keyvalfile, "system-idle=%3.4f" % (stats_percentage['cpu'][4])
+ for pkg in sorted(cpu_map.keys()):
+ if is_hyper_threaded():
+ for core in sorted(cpu_map[pkg].keys()):
+ total_idle = 0
+ total = 0
+ for cpu in cpu_map[pkg][core]:
+ total_idle += stats_stop["cpu%d" % cpu][4]
+ for i in range(1, len(stats_stop["cpu%d" % cpu])):
+ total += stats_stop["cpu%d" % cpu][i]
+ else:
+ total_idle = 0
+ total = 0
+ for cpu in cpu_map[pkg]:
+ total_idle += stats_stop["cpu%d" % cpu][4]
+ for i in range(1, len(stats_stop["cpu%d" % cpu])):
+ total += stats_stop["cpu%d" % cpu][i]
+ print >> reportfile, "Package: ", pkg, "Idle %3.4f%%" \
+ % (float(total_idle)*100/total)
+ print >> keyvalfile, "package-%s=%3.4f" % \
+ (pkg, (float(total_idle)*100/total))
+ except Exception, details:
+ print "Generating utilization report failed: ", details
+ sys.exit(1)
+
+ #Add record delimiter '\n' before closing these files
+ print >> debugfile
+ debugfile.close()
+ print >> reportfile
+ reportfile.close()
+ print >> keyvalfile
+ keyvalfile.close()
+
+def generate_loc_intr_report():
+ ''' Generate interrupt report of CPU's
+ '''
+ try:
+ if (not os.path.exists('/procstat')):
+ os.mkdir('/procstat')
+
+ get_proc_loc_count(intr_stop)
+
+ reportfile = open('/procstat/cpu-loc_interrupts', 'a')
+ print >> reportfile, "=============================================="
+ print >> reportfile, " Local timer interrupt stats "
+ print >> reportfile, "=============================================="
+
+ for i in range(0, cpu_count):
+ intr_stop[i] = int(intr_stop[i]) - int(intr_start[i])
+ print >> reportfile, "CPU%s: %s" %(i, intr_stop[i])
+ print >> reportfile
+ reportfile.close()
+ except Exception, details:
+ print "Generating interrupt report failed: ", details
+ sys.exit(1)
+
+def record_loc_intr_count():
+ ''' Record Interrupt statistics when timer_migration
+ was disabled
+ '''
+ try:
+ global intr_start, intr_stop
+ for i in range(0, cpu_count):
+ intr_stat_timer_0.append(intr_stop[i])
+ intr_start = []
+ intr_stop = []
+ except Exception, details:
+ print "INFO: Record interrupt statistics when
timer_migration=0",details
+
+def expand_range(range_val):
+ '''
+ Expand the range of value into actual numbers
+ '''
+ ids_list = list()
+ try:
+ sep_comma = range_val.split(",")
+ for i in range(0, len(sep_comma)):
+ hyphen_values = sep_comma[i].split("-")
+ if len(hyphen_values) == 1:
+ ids_list.append(int(hyphen_values[0]))
+ else:
+ for j in range(int(hyphen_values[0]), int(hyphen_values[1])+1):
+ ids_list.append(j)
+ return(ids_list)
+ except Exception, details:
+ print "INFO: expand_pkg_grps failed ", details
+
+def is_quad_core():
+ '''
+ Read /proc/cpuinfo and check if system is Quad core
+ '''
+ try:
+ cpuinfo = open('/proc/cpuinfo', 'r')
+ for line in cpuinfo:
+ if line.startswith('cpu cores'):
+ cores = line.split("cpu cores")
+ num_cores = cores[1].split(":")
+ cpuinfo.close()
+ if int(num_cores[1]) == 4:
+ return(1)
+ else:
+ return(0)
+ except IOError, e:
+ print "Failed to get cpu core information", e
+ sys.exit(1)
+
+def validate_cpugrp_map(cpu_group, sched_mc_level, sched_smt_level):
+ '''
+ Verify if cpugrp belong to same package
+ '''
+ modi_cpu_grp = cpu_group[:]
+ try:
+ if is_hyper_threaded():
+ for pkg in sorted(cpu_map.keys()):
+ # if CPU utilized is across package this condition will be true
+ if len(modi_cpu_grp) != len(cpu_group):
+ break
+ for core in sorted(cpu_map[pkg].keys()):
+ core_cpus = cpu_map[pkg][core]
+ if core_cpus == modi_cpu_grp:
+ return 0
+ else:
+ #if CPUs used across the cores
+ for i in range(0, len(core_cpus)):
+ if core_cpus[i] in modi_cpu_grp:
+ modi_cpu_grp.remove(core_cpus[i])
+ if len(modi_cpu_grp) == 0:
+ return 0
+ #This code has to be deleted
+ #else:
+ # If sched_smt == 0 then its oky if threads run
+ # in different cores of same package
+ #if sched_smt_level > 0 :
+ #return 1
+ else:
+ for pkg in sorted(cpu_map.keys()):
+ pkg_cpus = cpu_map[pkg]
+ if len(cpu_group) == len(pkg_cpus):
+ if pkg_cpus == cpu_group:
+ return(0)
+ else:
+ if int(cpus_utilized[0]) in cpu_map[pkg] or
int(cpus_utilized[1]) in cpu_map[pkg]:
+ return(0)
+
+ return(1)
+
+ except Exception, details:
+ print "Exception in validate_cpugrp_map: ", details
+ sys.exit(1)
+
+
+def verify_sched_domain_dmesg(sched_mc_level, sched_smt_level):
+ '''
+ Read sched domain information from dmesg.
+ '''
+ cpu_group = list()
+ try:
+ dmesg_info = os.popen('dmesg').read()
+ if dmesg_info != "":
+ lines = dmesg_info.split('\n')
+ for i in range(0, len(lines)):
+ if lines[i].endswith('CPU'):
+ groups = lines[i+1].split("groups:")
+ group_info = groups[1]
+ if group_info.find("(") != -1:
+ openindex=group_info.index("(")
+ closeindex=group_info.index(")")
+ group_info=group_info.replace\
+ (group_info[openindex:closeindex+1],"")
+
+ subgroup = group_info.split(",")
+ for j in range(0, len(subgroup)):
+ cpu_group = expand_range(subgroup[j])
+ status = validate_cpugrp_map(cpu_group,
sched_mc_level,\
+ sched_smt_level)
+ if status == 1:
+ if is_quad_core() == 1:
+ if int(sched_mc_level) == 0:
+ return(0)
+ else:
+ return(1)
+ else:
+ return(1)
+ return(0)
+ else:
+ return(1)
+ except Exception, details:
+ print "Reading dmesg failed", details
+ sys.exit(1)
+
+def get_cpu_utilization(cpu):
+ ''' Return cpu utilization of cpu_id
+ '''
+ try:
+ for l in sorted(stats_percentage.keys()):
+ if cpu == stats_percentage[l][0]:
+ return stats_percentage[l][1]
+ return -1
+ except Exception, details:
+ print "Exception in get_cpu_utilization", details
+ sys.exit(1)
+
+def validate_cpu_consolidation(stress, work_ld, sched_mc_level,
sched_smt_level):
+ ''' Verify if cpu's on which threads executed belong to same
+ package
+ '''
+ cpus_utilized = list()
+ threads = get_job_count(stress, work_ld, sched_smt_level)
+ try:
+ for l in sorted(stats_percentage.keys()):
+ #modify threshold
+ cpu_id = stats_percentage[l][0].split("cpu")
+ if cpu_id[1] == '':
+ continue
+ if int(cpu_id[1]) in cpus_utilized:
+ continue
+ if is_hyper_threaded():
+ if work_ld == "kernbench" and sched_smt_level < sched_mc_level:
+ siblings = get_siblings(cpu_id[1])
+ if siblings != "":
+ sib_list = siblings.split()
+ utilization = int(stats_percentage[l][1])
+ for i in range(0, len(sib_list)):
+ utilization += int(get_cpu_utilization("cpu%s"
%sib_list[i]))
+ else:
+ utilization = stats_percentage[l][1]
+ if utilization > 40:
+ cpus_utilized.append(int(cpu_id[1]))
+ if siblings != "":
+ for i in range(0, len(sib_list)):
+ cpus_utilized.append(int(sib_list[i]))
+ else:
+ # This threshold wuld be modified based on results
+ if stats_percentage[l][1] > 40:
+ cpus_utilized.append(int(cpu_id[1]))
+ else:
+ if work_ld == "kernbench" :
+ if stats_percentage[l][1] > 50:
+ cpus_utilized.append(int(cpu_id[1]))
+ else:
+ if stats_percentage[l][1] > 70:
+ cpus_utilized.append(int(cpu_id[1]))
+ cpus_utilized.sort()
+ print "INFO: CPU's utilized ", cpus_utilized
+
+ # If length of CPU's utilized is not = number of jobs exit with 1
+ if len(cpus_utilized) < threads:
+ return 1
+
+ status = validate_cpugrp_map(cpus_utilized, sched_mc_level, \
+ sched_smt_level)
+ if status == 1:
+ print "INFO: CPUs utilized is not in same package or core"
+
+ return(status)
+ except Exception, details:
+ print "Exception in validate_cpu_consolidation: ", details
+ sys.exit(1)
+
+def get_cpuid_max_intr_count():
+ '''Return the cpu id's of two cpu's with highest number of intr'''
+ try:
+ highest = 0
+ second_highest = 0
+ cpus_utilized = []
+
+ #Skipping CPU0 as it is generally high
+ for i in range(1, cpu_count):
+ if int(intr_stop[i]) > int(highest):
+ if highest != 0:
+ second_highest = highest
+ cpu2_max_intr = cpu1_max_intr
+ highest = int(intr_stop[i])
+ cpu1_max_intr = i
+ else:
+ if int(intr_stop[i]) > int(second_highest):
+ second_highest = int(intr_stop[i])
+ cpu2_max_intr = i
+ cpus_utilized.append(cpu1_max_intr)
+ cpus_utilized.append(cpu2_max_intr)
+
+ for i in range(1, cpu_count):
+ if i != cpu1_max_intr and i != cpu2_max_intr:
+ diff = second_highest - intr_stop[i]
+ ''' Threshold of difference has to be manipulated '''
+ if diff < 10000:
+ print "INFO: Diff in interrupt count is below threshold"
+ cpus_utilized = []
+ return cpus_utilized
+ print "INFO: Interrupt count in other CPU's low as expected"
+ return cpus_utilized
+ except Exception, details:
+ print "Exception in get_cpuid_max_intr_count: ", details
+ sys.exit(1)
+
+def validate_ilb (sched_mc_level, sched_smt_level):
+ ''' Validate if ilb is running in same package where work load is running
+ '''
+ try:
+ cpus_utilized = get_cpuid_max_intr_count()
+ if not cpus_utilized:
+ return 1
+
+ status = validate_cpugrp_map(cpus_utilized, sched_mc_level,
sched_smt_level)
+ return status
+ except Exception, details:
+ print "Exception in validate_ilb: ", details
+ sys.exit(1)
+
+def reset_schedmc():
+ ''' Routine to reset sched_mc_power_savings to Zero level
+ '''
+ try:
+ os.system('echo 0 > \
+ /sys/devices/system/cpu/sched_mc_power_savings 2>/dev/null')
+ except OSError, e:
+ print "Could not set sched_mc_power_savings to 0", e
+ sys.exit(1)
+
+def reset_schedsmt():
+ ''' Routine to reset sched_smt_power_savings to Zero level
+ '''
+ try:
+ os.system('echo 0 > \
+ /sys/devices/system/cpu/sched_smt_power_savings 2>/dev/null')
+ except OSError, e:
+ print "Could not set sched_smt_power_savings to 0", e
+ sys.exit(1)
+
+def stop_wkld(work_ld):
+ ''' Kill workload triggered in background
+ '''
+ try:
+ os.system('pkill %s 2>/dev/null' %work_ld)
+ if work_ld == "kernbench":
+ os.system('pkill make 2>/dev/null')
+ except OSError, e:
+ print "Exception in stop_wkld", e
+ sys.exit(1)
diff --git a/testcases/kernel/power_management/lib/sched_mc.py
b/testcases/kernel/power_management/lib/sched_mc.py
deleted file mode 100755
index 24285eb..0000000
--- a/testcases/kernel/power_management/lib/sched_mc.py
+++ /dev/null
@@ -1,872 +0,0 @@
-#!/usr/bin/python
-''' Reusable functions related to sched mc FVT are put together
-'''
-
-import os
-import sys
-import re
-from time import time
-
-__author__ = "Vaidyanathan Srinivasan <sva...@linux.vnet.ibm.com>"
-__author__ = "Poornima Nayak <mpna...@linux.vnet.ibm.com>"
-
-
-cpu_map = {}
-stats_start = {}
-stats_stop = {}
-stats_percentage = {}
-intr_start = []
-intr_stop = []
-cpu_count = 0
-socket_count = 0
-cpu1_max_intr = 0
-cpu2_max_intr = 0
-intr_stat_timer_0 = []
-siblings_list = []
-
-def clear_dmesg():
- '''
- Clears dmesg
- '''
- try:
- os.system('dmesg -c >/dev/null')
- except OSError, e:
- print 'Clearing dmesg failed', e
- sys.exit(1)
-
-def count_num_cpu():
- ''' Returns number of cpu's in system
- '''
- try:
- cpuinfo = open('/proc/cpuinfo', 'r')
- global cpu_count
- for line in cpuinfo:
- if line.startswith('processor'):
- cpu_count += 1
- cpuinfo.close()
- except IOError, e:
- print "Could not get cpu count", e
- sys.exit(1)
-
-def count_num_sockets():
- ''' Returns number of cpu's in system
- '''
- socket_list = []
- global socket_count
- try:
- for i in range(0, cpu_count):
- phy_pkg_file = '/sys/devices/system/cpu/cpu%s' % i
- phy_pkg_file += '/topology/physical_package_id'
- socket_id = open(phy_pkg_file).read().rstrip()
- if socket_id not in socket_list:
- socket_list.append(socket_id)
- socket_count = socket_count + 1
- except Exception, details:
- print "INFO: Failed to get number of sockets in system", details
- sys.exit(1)
-
-def is_multi_socket():
- '''Return 1 if the system is multi socket else return 0
- '''
- try:
- if socket_count > 1:
- return 1
- else:
- return 0
- except Exception:
- print "Failed to check if system is multi socket system"
- sys.exit(1)
-
-def is_hyper_threaded():
- '''Return 1 if the system is hyper threaded else return 0
- '''
- try:
- file_cpuinfo = open("/proc/cpuinfo", 'r')
- for line in file_cpuinfo:
- if line.startswith('siblings'):
- siblings = line.split(":")
- if line.startswith('cpu cores'):
- cpu_cores = line.split(":")
- break
- if int( siblings[1] ) / int( cpu_cores[1] )> 1:
- file_cpuinfo.close()
- return 1
- else:
- return 0
- except Exception:
- print "Failed to check if system is hyper-threaded"
- sys.exit(1)
-
-def is_multi_core():
- ''' Return true if system has sockets has multiple cores
- '''
-
- try:
- file_cpuinfo = open("/proc/cpuinfo", 'r')
- for line in file_cpuinfo:
- if line.startswith('siblings'):
- siblings = line.split(":")
- if line.startswith('cpu cores'):
- cpu_cores = line.split(":")
- break
-
- if int( siblings[1] ) == int( cpu_cores[1] ):
- if int( cpu_cores[1] ) > 1:
- multi_core = 1
- else:
- multi_core = 0
- else:
- num_of_cpus = int(siblings[1]) / int(cpu_cores[1])
- if num_of_cpus > 1:
- multi_core = 1
- else:
- multi_core = 0
- file_cpuinfo.close()
- return multi_core
- except Exception:
- print "Failed to check if system is multi core system"
- sys.exit(1)
-
-def get_hyper_thread_count():
- ''' Return number of threads in CPU. For eg for x3950 this function
- would return 2. In future if 4 threads are supported in CPU, this
- routine would return 4
- '''
- try:
- file_cpuinfo = open("/proc/cpuinfo", 'r')
- for line in file_cpuinfo:
- if line.startswith('siblings'):
- siblings = line.split(":")
- if line.startswith('cpu cores'):
- cpu_cores = line.split(":")
- break
- return( int( siblings[1] ) / int( cpu_cores[1] ) )
- except Exception:
- print "Failed to check if system is hyper-threaded"
- sys.exit(1)
-
-def map_cpuid_pkgid():
- ''' Routine to map physical package id to cpu id
- '''
- if is_hyper_threaded():
- core_info = {}
- try:
- for i in range(0, cpu_count):
- phy_pkg_file = '/sys/devices/system/cpu/cpu%s' % i
- phy_pkg_file += '/topology/physical_package_id'
- core_file = '/sys/devices/system/cpu/cpu%s' % i
- core_file += '/topology/core_id'
- core_id = open(core_file).read().rstrip()
- cpu_phy_id = open(phy_pkg_file).read().rstrip()
- if not cpu_phy_id in cpu_map.keys():
- core_info = {}
- else:
- core_info = cpu_map[cpu_phy_id]
- if not core_id in core_info.keys():
- core_info[core_id] = [i]
- else:
- core_info[core_id].append(i)
- cpu_map[cpu_phy_id] = core_info
- except Exception, details:
- print "Package, core & cpu map table creation failed", e
- sys.exit(1)
- else:
- for i in range(0, cpu_count):
- try:
- phy_pkg_file = '/sys/devices/system/cpu/cpu%s' %i
- phy_pkg_file += '/topology/physical_package_id'
- cpu_phy_id = open(phy_pkg_file).read().rstrip()
- if not cpu_phy_id in cpu_map.keys():
- cpu_map[cpu_phy_id] = [i]
- else:
- cpu_map[cpu_phy_id].append(i)
- except IOError, e:
- print "Mapping of CPU to pkg id failed", e
- sys.exit(1)
-
-
-def generate_sibling_list():
- ''' Routine to generate siblings list
- '''
- try:
- for i in range(0, cpu_count):
- siblings_file = '/sys/devices/system/cpu/cpu%s' % i
- siblings_file += '/topology/thread_siblings_list'
- threads_sibs = open(siblings_file).read().rstrip()
- thread_ids = threads_sibs.split("-")
-
- if not thread_ids in siblings_list:
- siblings_list.append(thread_ids)
- except Exception, details:
- print "Exception in generate_siblings_list", details
- sys.exit(1)
-
-def get_siblings(cpu_id):
- ''' Return siblings of cpu_id
- '''
- try:
- cpus = ""
- for i in range(0, len(siblings_list)):
- for cpu in siblings_list[i]:
- if cpu_id == cpu:
- for j in siblings_list[i]:
- # Exclude cpu_id in the list of siblings
- if j != cpu_id:
- cpus += j
- return cpus
- return cpus
- except Exception, details:
- print "Exception in get_siblings", details
- sys.exit(1)
-
-def get_proc_data(stats_list):
- ''' Read /proc/stat info and store in dictionary
- '''
- try:
- file_procstat = open("/proc/stat", 'r')
- for line in file_procstat:
- if line.startswith('cpu'):
- data = line.split()
- stats_list[data[0]] = data
- file_procstat.close()
- except OSError, e:
- print "Could not read statistics", e
- sys.exit(1)
-
-def get_proc_loc_count(loc_stats):
- ''' Read /proc/interrupts info and store in list
- '''
- try:
- file_procstat = open("/proc/interrupts", 'r')
- for line in file_procstat:
- if line.startswith(' LOC:') or line.startswith('LOC:'):
- data = line.split()
- for i in range(0, cpu_count):
- # To skip LOC
- loc_stats.append(data[i+1])
- file_procstat.close()
- return
- except Exception, details:
- print "Could not read interrupt statistics", details
- sys.exit(1)
-
-
-def set_sched_mc_power(sched_mc_level):
- ''' Routine to set sched_mc_power_savings to required level
- '''
- try:
- os.system('echo %s > \
- /sys/devices/system/cpu/sched_mc_power_savings 2>/dev/null'
- % sched_mc_level)
-
- get_proc_data(stats_start)
- except OSError, e:
- print "Could not set sched_mc_power_savings to", sched_mc_level, e
- sys.exit(1)
-
-def set_sched_smt_power(sched_smt_level):
- ''' Routine to set sched_smt_power_savings to required level
- '''
- try:
- os.system('echo %s > \
- /sys/devices/system/cpu/sched_smt_power_savings 2>/dev/null'
- % sched_smt_level)
-
- get_proc_data(stats_start)
- except OSError, e:
- print "Could not set sched_smt_power_savings to", sched_smt_level, e
- sys.exit(1)
-
-def set_timer_migration_interface(value):
- ''' Set value of timer migration interface to a value
- passed as argument
- '''
- try:
- os.system('echo %s > \
- /proc/sys/kernel/timer_migration 2>/dev/null' % value)
- except OSError, e:
- print "Could not set timer_migration to ", value, e
- sys.exit(1)
-
-def get_job_count(stress, workload, sched_smt):
- ''' Returns number of jobs/threads to be triggered
- '''
-
- try:
- if stress == "thread":
- threads = get_hyper_thread_count()
- if stress == "partial":
- threads = cpu_count / socket_count
- if is_hyper_threaded():
- if workload == "ebizzy" and int(sched_smt) ==0:
- threads = threads / get_hyper_thread_count()
- if workload == "kernbench" and int(sched_smt) < 2:
- threads = threads / get_hyper_thread_count()
- if stress == "full":
- threads = cpu_count
- if stress == "single_job":
- threads = 1
- duration = 180
- return threads
- except Exception, details:
- print "get job count failed ", details
- sys.exit(1)
-
-def trigger_ebizzy (sched_smt, stress, duration, background, pinned):
- ''' Triggers ebizzy workload for sched_mc=1
- testing
- '''
- try:
- threads = get_job_count(stress, "ebizzy", sched_smt)
- workload = "ebizzy"
- olddir = os.getcwd()
- installdir = '%s/utils/benchmark' % os.environ['LTPROOT']
- if os.path.exists(installdir):
- path = '%s/utils/benchmark' % os.environ['LTPROOT']
- os.chdir(path)
- wklds_avlbl = list()
- workload_dir = ""
-
- # Use the latest version of similar workload available
- for file_name in os.listdir('.'):
- if file_name.find(workload) != -1:
- wklds_avlbl.append(file_name)
-
- wklds_avlbl.sort()
- workload_dir = wklds_avlbl[len(wklds_avlbl)-1]
- if workload_dir != "":
- new_path = os.path.join(path,"%s" % workload_dir)
- os.chdir(new_path)
- else:
- print "INFO: ebizzy benchmark not found"
- sys.exit(1)
- else:
- path = '%s/testcases/bin' % os.environ['LTPROOT']
- os.chdir(path)
- workload_file = ""
- for file_name in os.listdir('.'):
- if file_name == workload:
- workload_file = file_name
- break
- if workload_file == "":
- print "INFO: ebizzy benchmark not found"
- sys.exit(1)
- get_proc_data(stats_start)
- get_proc_loc_count(intr_start)
- try:
- if background == "yes":
- succ = os.system('./ebizzy -t%s -s4096 -S %s >/dev/null &'
- % (threads, duration))
- else:
- if pinned == "yes":
- succ = os.system('taskset -c %s ./ebizzy -t%s -s4096 -S %s
>/dev/null'
- % (cpu_count -1, threads, duration))
- else:
- succ = os.system('./ebizzy -t%s -s4096 -S %s >/dev/null'
- % (threads, duration))
-
- if succ == 0:
- print "INFO: ebizzy workload triggerd"
- os.chdir(olddir)
- #Commented bcoz it doesnt make sense to capture it when
workload triggered
- #in background
- #get_proc_loc_count(intr_stop)
- #get_proc_data(stats_stop)
- else:
- print "INFO: ebizzy workload triggerd failed"
- os.chdir(olddir)
- sys.exit(1)
- except Exception, details:
- print "Ebizzy workload trigger failed ", details
- sys.exit(1)
- except Exception, details:
- print "Ebizzy workload trigger failed ", details
- sys.exit(1)
-
-def trigger_kernbench (sched_smt, stress, background, pinned, perf_test):
- ''' Trigger load on system like kernbench.
- Copys existing copy of LTP into as LTP2 and then builds it
- with make -j
- '''
- olddir = os.getcwd()
- try:
- threads = get_job_count(stress, "kernbench", sched_smt)
-
- dst_path = "/root"
- workload = "kernbench"
- olddir = os.getcwd()
- installdir = '%s/utils/benchmark' % os.environ['LTPROOT']
- if os.path.exists(installdir):
- path = '%s/utils/benchmark' % os.environ['LTPROOT']
- os.chdir(path)
- wklds_avlbl = list()
- workload_dir = ""
- for file_name in os.listdir('.'):
- if file_name.find(workload) != -1:
- wklds_avlbl.append(file_name)
- if len(wklds_avlbl):
- wklds_avlbl.sort()
- workload_dir = wklds_avlbl[len(wklds_avlbl)-1]
- if workload_dir != "":
- benchmark_path = os.path.join(path,"%s" % workload_dir)
- else:
- print "INFO: kernbench benchmark not found"
- sys.exit(1)
- else:
- path = '%s/testcases/bin' % os.environ['LTPROOT']
- os.chdir(path)
- workload_file = ""
- for file_name in os.listdir('.'):
- if file_name == workload:
- workload_file = file_name
- break
- if workload_file != "":
- benchmark_path = path
- else:
- print "INFO: kernbench benchmark not found"
- sys.exit(1)
-
- os.chdir(dst_path)
- linux_source_dir=""
- for file_name in os.listdir('.'):
- if file_name.find("linux-2.6") != -1 and os.path.isdir(file_name):
- linux_source_dir=file_name
- break
- if linux_source_dir != "":
- os.chdir(linux_source_dir)
- else:
- print "INFO: Linux kernel source not found in /root. Workload\
- Kernbench cannot be executed"
- sys.exit(1)
-
- get_proc_data(stats_start)
- get_proc_loc_count(intr_start)
- if pinned == "yes":
- os.system ( 'taskset -c %s %s/kernbench -o %s -M -H -n 1 \
- >/dev/null 2>&1 &' % (cpu_count-1, benchmark_path, threads))
-
- # We have to delete import in future
- import time
- time.sleep(240)
- stop_wkld("kernbench")
- else:
- if background == "yes":
- os.system ( '%s/kernbench -o %s -M -H -n 1 >/dev/null 2>&1 &' \
- % (benchmark_path, threads))
- else:
- if perf_test == "yes":
- os.system ( '%s/kernbench -o %s -M -H -n 1 >/dev/null
2>&1' \
- % (benchmark_path, threads))
- else:
- os.system ( '%s/kernbench -o %s -M -H -n 1 >/dev/null 2>&1
&' \
- % (benchmark_path, threads))
- # We have to delete import in future
- import time
- time.sleep(240)
- stop_wkld("kernbench")
-
- print "INFO: Workload kernbench triggerd"
- os.chdir(olddir)
- except Exception, details:
- print "Workload kernbench trigger failed ", details
- sys.exit(1)
-
-def trigger_workld(sched_smt, workload, stress, duration, background, pinned,
perf_test):
- ''' Triggers workload passed as argument. Number of threads
- triggered is based on stress value.
- '''
- try:
- if workload == "ebizzy":
- trigger_ebizzy (sched_smt, stress, duration, background, pinned)
- if workload == "kernbench":
- trigger_kernbench (sched_smt, stress, background, pinned,
perf_test)
- except Exception, details:
- print "INFO: Trigger workload failed", details
- sys.exit(1)
-
-def generate_report():
- ''' Generate report of CPU utilization
- '''
- cpu_labels = ('cpu', 'user', 'nice', 'system', 'idle', 'iowait', 'irq',
- 'softirq', 'x', 'y')
- if (not os.path.exists('/procstat')):
- os.mkdir('/procstat')
-
- get_proc_data(stats_stop)
-
- reportfile = open('/procstat/cpu-utilisation', 'a')
- debugfile = open('/procstat/cpu-utilisation.debug', 'a')
- for l in stats_stop:
- percentage_list = []
- total = 0
- for i in range(1, len(stats_stop[l])):
- stats_stop[l][i] = int(stats_stop[l][i]) - int(stats_start[l][i])
- total += stats_stop[l][i]
- percentage_list.append(l)
- for i in range(1, len(stats_stop[l])):
- percentage_list.append(float(stats_stop[l][i])*100/total)
-
- stats_percentage[l] = percentage_list
-
- for i in range(0, len(cpu_labels)):
- print >> debugfile, cpu_labels[i], '\t',
- print >> debugfile
- for l in sorted(stats_stop.keys()):
- print >> debugfile, l, '\t',
- for i in range(1, len(stats_stop[l])):
- print >> debugfile, stats_stop[l][i], '\t',
- print >> debugfile
-
- for i in range(0, len(cpu_labels)):
- print >> reportfile, cpu_labels[i], '\t',
- print >> reportfile
- for l in sorted(stats_percentage.keys()):
- print >> reportfile, l, '\t',
- for i in range(1, len(stats_percentage[l])):
- print >> reportfile, " %3.4f" % stats_percentage[l][i],
- print >> reportfile
-
- #Now get the package ID information
- try:
- print >> debugfile, "cpu_map: ", cpu_map
- keyvalfile = open('/procstat/keyval', 'a')
- print >> keyvalfile, "nr_packages=%d" % len(cpu_map)
- print >> keyvalfile, "system-idle=%3.4f" % (stats_percentage['cpu'][4])
- for pkg in sorted(cpu_map.keys()):
- if is_hyper_threaded():
- for core in sorted(cpu_map[pkg].keys()):
- total_idle = 0
- total = 0
- for cpu in cpu_map[pkg][core]:
- total_idle += stats_stop["cpu%d" % cpu][4]
- for i in range(1, len(stats_stop["cpu%d" % cpu])):
- total += stats_stop["cpu%d" % cpu][i]
- else:
- total_idle = 0
- total = 0
- for cpu in cpu_map[pkg]:
- total_idle += stats_stop["cpu%d" % cpu][4]
- for i in range(1, len(stats_stop["cpu%d" % cpu])):
- total += stats_stop["cpu%d" % cpu][i]
- print >> reportfile, "Package: ", pkg, "Idle %3.4f%%" \
- % (float(total_idle)*100/total)
- print >> keyvalfile, "package-%s=%3.4f" % \
- (pkg, (float(total_idle)*100/total))
- except Exception, details:
- print "Generating utilization report failed: ", details
- sys.exit(1)
-
- #Add record delimiter '\n' before closing these files
- print >> debugfile
- debugfile.close()
- print >> reportfile
- reportfile.close()
- print >> keyvalfile
- keyvalfile.close()
-
-def generate_loc_intr_report():
- ''' Generate interrupt report of CPU's
- '''
- try:
- if (not os.path.exists('/procstat')):
- os.mkdir('/procstat')
-
- get_proc_loc_count(intr_stop)
-
- reportfile = open('/procstat/cpu-loc_interrupts', 'a')
- print >> reportfile, "=============================================="
- print >> reportfile, " Local timer interrupt stats "
- print >> reportfile, "=============================================="
-
- for i in range(0, cpu_count):
- intr_stop[i] = int(intr_stop[i]) - int(intr_start[i])
- print >> reportfile, "CPU%s: %s" %(i, intr_stop[i])
- print >> reportfile
- reportfile.close()
- except Exception, details:
- print "Generating interrupt report failed: ", details
- sys.exit(1)
-
-def record_loc_intr_count():
- ''' Record Interrupt statistics when timer_migration
- was disabled
- '''
- try:
- global intr_start, intr_stop
- for i in range(0, cpu_count):
- intr_stat_timer_0.append(intr_stop[i])
- intr_start = []
- intr_stop = []
- except Exception, details:
- print "INFO: Record interrupt statistics when
timer_migration=0",details
-
-def expand_range(range_val):
- '''
- Expand the range of value into actual numbers
- '''
- ids_list = list()
- try:
- sep_comma = range_val.split(",")
- for i in range(0, len(sep_comma)):
- hyphen_values = sep_comma[i].split("-")
- if len(hyphen_values) == 1:
- ids_list.append(int(hyphen_values[0]))
- else:
- for j in range(int(hyphen_values[0]), int(hyphen_values[1])+1):
- ids_list.append(j)
- return(ids_list)
- except Exception, details:
- print "INFO: expand_pkg_grps failed ", details
-
-def is_quad_core():
- '''
- Read /proc/cpuinfo and check if system is Quad core
- '''
- try:
- cpuinfo = open('/proc/cpuinfo', 'r')
- for line in cpuinfo:
- if line.startswith('cpu cores'):
- cores = line.split("cpu cores")
- num_cores = cores[1].split(":")
- cpuinfo.close()
- if int(num_cores[1]) == 4:
- return(1)
- else:
- return(0)
- except IOError, e:
- print "Failed to get cpu core information", e
- sys.exit(1)
-
-def validate_cpugrp_map(cpu_group, sched_mc_level, sched_smt_level):
- '''
- Verify if cpugrp belong to same package
- '''
- modi_cpu_grp = cpu_group[:]
- try:
- if is_hyper_threaded():
- for pkg in sorted(cpu_map.keys()):
- # if CPU utilized is across package this condition will be true
- if len(modi_cpu_grp) != len(cpu_group):
- break
- for core in sorted(cpu_map[pkg].keys()):
- core_cpus = cpu_map[pkg][core]
- if core_cpus == modi_cpu_grp:
- return 0
- else:
- #if CPUs used across the cores
- for i in range(0, len(core_cpus)):
- if core_cpus[i] in modi_cpu_grp:
- modi_cpu_grp.remove(core_cpus[i])
- if len(modi_cpu_grp) == 0:
- return 0
- #This code has to be deleted
- #else:
- # If sched_smt == 0 then its oky if threads run
- # in different cores of same package
- #if sched_smt_level > 0 :
- #return 1
- else:
- for pkg in sorted(cpu_map.keys()):
- pkg_cpus = cpu_map[pkg]
- if len(cpu_group) == len(pkg_cpus):
- if pkg_cpus == cpu_group:
- return(0)
- else:
- if int(cpus_utilized[0]) in cpu_map[pkg] or
int(cpus_utilized[1]) in cpu_map[pkg]:
- return(0)
-
- return(1)
-
- except Exception, details:
- print "Exception in validate_cpugrp_map: ", details
- sys.exit(1)
-
-
-def verify_sched_domain_dmesg(sched_mc_level, sched_smt_level):
- '''
- Read sched domain information from dmesg.
- '''
- cpu_group = list()
- try:
- dmesg_info = os.popen('dmesg').read()
- if dmesg_info != "":
- lines = dmesg_info.split('\n')
- for i in range(0, len(lines)):
- if lines[i].endswith('CPU'):
- groups = lines[i+1].split("groups:")
- group_info = groups[1]
- if group_info.find("(") != -1:
- openindex=group_info.index("(")
- closeindex=group_info.index(")")
- group_info=group_info.replace\
- (group_info[openindex:closeindex+1],"")
-
- subgroup = group_info.split(",")
- for j in range(0, len(subgroup)):
- cpu_group = expand_range(subgroup[j])
- status = validate_cpugrp_map(cpu_group,
sched_mc_level,\
- sched_smt_level)
- if status == 1:
- if is_quad_core() == 1:
- if int(sched_mc_level) == 0:
- return(0)
- else:
- return(1)
- else:
- return(1)
- return(0)
- else:
- return(1)
- except Exception, details:
- print "Reading dmesg failed", details
- sys.exit(1)
-
-def get_cpu_utilization(cpu):
- ''' Return cpu utilization of cpu_id
- '''
- try:
- for l in sorted(stats_percentage.keys()):
- if cpu == stats_percentage[l][0]:
- return stats_percentage[l][1]
- return -1
- except Exception, details:
- print "Exception in get_cpu_utilization", details
- sys.exit(1)
-
-def validate_cpu_consolidation(stress, work_ld, sched_mc_level,
sched_smt_level):
- ''' Verify if cpu's on which threads executed belong to same
- package
- '''
- cpus_utilized = list()
- threads = get_job_count(stress, work_ld, sched_smt_level)
- try:
- for l in sorted(stats_percentage.keys()):
- #modify threshold
- cpu_id = stats_percentage[l][0].split("cpu")
- if cpu_id[1] == '':
- continue
- if int(cpu_id[1]) in cpus_utilized:
- continue
- if is_hyper_threaded():
- if work_ld == "kernbench" and sched_smt_level < sched_mc_level:
- siblings = get_siblings(cpu_id[1])
- if siblings != "":
- sib_list = siblings.split()
- utilization = int(stats_percentage[l][1])
- for i in range(0, len(sib_list)):
- utilization += int(get_cpu_utilization("cpu%s"
%sib_list[i]))
- else:
- utilization = stats_percentage[l][1]
- if utilization > 40:
- cpus_utilized.append(int(cpu_id[1]))
- if siblings != "":
- for i in range(0, len(sib_list)):
- cpus_utilized.append(int(sib_list[i]))
- else:
- # This threshold wuld be modified based on results
- if stats_percentage[l][1] > 40:
- cpus_utilized.append(int(cpu_id[1]))
- else:
- if work_ld == "kernbench" :
- if stats_percentage[l][1] > 50:
- cpus_utilized.append(int(cpu_id[1]))
- else:
- if stats_percentage[l][1] > 70:
- cpus_utilized.append(int(cpu_id[1]))
- cpus_utilized.sort()
- print "INFO: CPU's utilized ", cpus_utilized
-
- # If length of CPU's utilized is not = number of jobs exit with 1
- if len(cpus_utilized) < threads:
- return 1
-
- status = validate_cpugrp_map(cpus_utilized, sched_mc_level, \
- sched_smt_level)
- if status == 1:
- print "INFO: CPUs utilized is not in same package or core"
-
- return(status)
- except Exception, details:
- print "Exception in validate_cpu_consolidation: ", details
- sys.exit(1)
-
-def get_cpuid_max_intr_count():
- '''Return the cpu id's of two cpu's with highest number of intr'''
- try:
- highest = 0
- second_highest = 0
- cpus_utilized = []
-
- #Skipping CPU0 as it is generally high
- for i in range(1, cpu_count):
- if int(intr_stop[i]) > int(highest):
- if highest != 0:
- second_highest = highest
- cpu2_max_intr = cpu1_max_intr
- highest = int(intr_stop[i])
- cpu1_max_intr = i
- else:
- if int(intr_stop[i]) > int(second_highest):
- second_highest = int(intr_stop[i])
- cpu2_max_intr = i
- cpus_utilized.append(cpu1_max_intr)
- cpus_utilized.append(cpu2_max_intr)
-
- for i in range(1, cpu_count):
- if i != cpu1_max_intr and i != cpu2_max_intr:
- diff = second_highest - intr_stop[i]
- ''' Threshold of difference has to be manipulated '''
- if diff < 10000:
- print "INFO: Diff in interrupt count is below threshold"
- cpus_utilized = []
- return cpus_utilized
- print "INFO: Interrupt count in other CPU's low as expected"
- return cpus_utilized
- except Exception, details:
- print "Exception in get_cpuid_max_intr_count: ", details
- sys.exit(1)
-
-def validate_ilb (sched_mc_level, sched_smt_level):
- ''' Validate if ilb is running in same package where work load is running
- '''
- try:
- cpus_utilized = get_cpuid_max_intr_count()
- if not cpus_utilized:
- return 1
-
- status = validate_cpugrp_map(cpus_utilized, sched_mc_level,
sched_smt_level)
- return status
- except Exception, details:
- print "Exception in validate_ilb: ", details
- sys.exit(1)
-
-def reset_schedmc():
- ''' Routine to reset sched_mc_power_savings to Zero level
- '''
- try:
- os.system('echo 0 > \
- /sys/devices/system/cpu/sched_mc_power_savings 2>/dev/null')
- except OSError, e:
- print "Could not set sched_mc_power_savings to 0", e
- sys.exit(1)
-
-def reset_schedsmt():
- ''' Routine to reset sched_smt_power_savings to Zero level
- '''
- try:
- os.system('echo 0 > \
- /sys/devices/system/cpu/sched_smt_power_savings 2>/dev/null')
- except OSError, e:
- print "Could not set sched_smt_power_savings to 0", e
- sys.exit(1)
-
-def stop_wkld(work_ld):
- ''' Kill workload triggered in background
- '''
- try:
- os.system('pkill %s 2>/dev/null' %work_ld)
- if work_ld == "kernbench":
- os.system('pkill make 2>/dev/null')
- except OSError, e:
- print "Exception in stop_wkld", e
- sys.exit(1)
diff --git a/testcases/kernel/power_management/pm_cpu_consolidation.py
b/testcases/kernel/power_management/pm_cpu_consolidation.py
new file mode 100755
index 0000000..5aa3948
--- /dev/null
+++ b/testcases/kernel/power_management/pm_cpu_consolidation.py
@@ -0,0 +1,145 @@
+#!/usr/bin/python
+''' This Python script interprets various sched stats values.
+ Validates cpu consolidation for given sched_mc_power_saving value
+'''
+
+import os
+import sys
+import time
+LIB_DIR = "%s/lib" % os.path.dirname(__file__)
+sys.path.append(LIB_DIR)
+from optparse import OptionParser
+from pm_sched_mc import *
+
+__author__ = "Poornima Nayak <mpna...@linux.vnet.ibm.com>"
+
+class Usage(Exception):
+ def __init__(self, msg):
+ self.msg = msg
+
+def main(argv=None):
+ if argv is None:
+ argv = sys.argv
+
+ usage = "-w"
+ parser = OptionParser(usage)
+ parser.add_option("-v", "--variation_test", dest="vary_mc_smt",
+ default=False, action="store_true", help="Vary sched_mc & sched_smt. \
+ -c and -t inputs are initial value of sched_mc & sched_smt")
+ parser.add_option("-c", "--mc_value", dest="mc_value",
+ default=0, help="Sched mc power saving value 0/1/2")
+ parser.add_option("-t", "--smt_value", dest="smt_value",
+ default=0, help="Sched smt power saving value 0/1/2")
+ parser.add_option("-w", "--workload", dest="work_ld",
+ default="ebizzy", help="Workload can be ebizzy/kernbench")
+ parser.add_option("-s", "--stress", dest="stress",
+ default="partial", help="Load on system is full/partial [i.e
50%]/thread")
+ parser.add_option("-p", "--performance", dest="perf_test",
+ default=False, action="store_true", help="Enable performance test")
+ (options, args) = parser.parse_args()
+
+ try:
+ count_num_cpu()
+ count_num_sockets()
+ if is_hyper_threaded():
+ generate_sibling_list()
+
+ # User should set option -v to test cpu consolidation
+ # resets when sched_mc &(/) sched_smt is disabled when
+ # workload is already running in the system
+
+ if options.vary_mc_smt:
+
+ # Since same code is used for testing package consolidation and
core
+ # consolidation is_multi_socket & is_hyper_threaded check is done
+ if is_multi_socket() and is_multi_core() and options.mc_value:
+ set_sched_mc_power(options.mc_value)
+
+ if is_hyper_threaded() and options.smt_value:
+ set_sched_smt_power(options.smt_value)
+
+ #Generate arguments for trigger workload, run workload in
background
+ map_cpuid_pkgid()
+ background="yes"
+ duration=360
+ pinned="no"
+ if int(options.mc_value) < 2 and int(options.smt_value) < 2:
+ trigger_ebizzy (options.smt_value, "partial", duration,
background, pinned)
+ work_ld="ebizzy"
+ #Wait for 120 seconds and then validate cpu consolidation works
+ #When sched_mc & sched_smt is set
+ import time
+ time.sleep(120)
+ else:
+ #Wait for 120 seconds and then validate cpu consolidation works
+ #When sched_mc & sched_smt is set
+ trigger_kernbench (options.smt_value, "partial", background,
pinned, "no")
+ work_ld="kernbench"
+ import time
+ time.sleep(300)
+
+ generate_report()
+ status = validate_cpu_consolidation("partial", work_ld,
options.mc_value, options.smt_value)
+ if status == 0:
+ print "INFO: Consolidation worked sched_smt &(/) sched_mc is
set"
+ #Disable sched_smt & sched_mc interface values
+ if options.vary_mc_smt and options.mc_value > 0:
+ set_sched_mc_power(0)
+ mc_value = options.mc_value
+ else:
+ mc_value = 0
+ if options.vary_mc_smt and options.smt_value > 0 and
is_hyper_threaded():
+ set_sched_smt_power(0)
+ smt_value = options.smt_value
+ else:
+ smt_value = 0
+
+ if work_ld == "kernbench":
+ time.sleep(240)
+ else:
+ time.sleep(120)
+
+ generate_report()
+ status = validate_cpu_consolidation("partial", work_ld,
mc_value, smt_value)
+ if background == "yes":
+ stop_wkld(work_ld)
+ #CPU consolidation should fail as sched_mc &(/) sched_smt is
disabled
+ if status == 1:
+ return(0)
+ else:
+ return(1)
+ else:
+ print "INFO: CPU consolidation failed when sched_mc &(/) \
+sched_smt was enabled. This is pre-requisite to proceed"
+ return(status)
+ else:
+ #The else part of the code validates behaviour of sched_mc
+ # and sched_smt set to 0, 1 & 2
+ if is_multi_socket():
+ set_sched_mc_power(options.mc_value)
+ if is_hyper_threaded():
+ set_sched_smt_power(options.smt_value)
+ map_cpuid_pkgid()
+ print "INFO: Created table mapping cpu to package"
+ background="no"
+ duration=60
+ pinned ="no"
+
+ if options.perf_test:
+ perf_test="yes"
+ else:
+ perf_test="no"
+
+ trigger_workld( options.smt_value, options.work_ld,
options.stress, duration, background, pinned, perf_test)
+ generate_report()
+ status = validate_cpu_consolidation(options.stress,
options.work_ld,options.mc_value, options.smt_value)
+ reset_schedmc()
+ if is_hyper_threaded():
+ reset_schedsmt()
+ return(status)
+ except Exception, details:
+ print "INFO: CPU consolidation failed", details
+ return(1)
+
+if __name__ == "__main__":
+ sys.exit(main())
diff --git a/testcases/kernel/power_management/pm_get_sched_values.c
b/testcases/kernel/power_management/pm_get_sched_values.c
new file mode 100644
index 0000000..5409971
--- /dev/null
+++ b/testcases/kernel/power_management/pm_get_sched_values.c
@@ -0,0 +1,50 @@
+/************************************************************************
+* Copyright (c) International Business Machines Corp., 2008
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation; either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+* the GNU General Public License for more details.
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*
+***************************************************************************/
+#include <stdio.h>
+#include "test.h"
+
+const char *TCID = "pm_get_sched_values";
+
+int get_supp_sched_mc(void)
+{
+ if (tst_kvercmp(2, 6, 29) < 0)
+ return 1;
+ else
+ return 2;
+}
+
+int get_supp_sched_smt(void)
+{
+ if (tst_kvercmp(2, 6, 29) < 0)
+ return 1;
+ else
+ return 2;
+}
+
+int main(int argc, char **argv)
+{
+ char *param;
+ if (argc == 0)
+ return 1;
+ else {
+ param = argv[1];
+ if (strcmp(param, "sched_mc") == 0)
+ return get_supp_sched_mc();
+ if (strcmp(param, "sched_smt") == 0)
+ return get_supp_sched_smt();
+ }
+}
diff --git a/testcases/kernel/power_management/pm_ilb_test.py
b/testcases/kernel/power_management/pm_ilb_test.py
new file mode 100755
index 0000000..3f6ad46
--- /dev/null
+++ b/testcases/kernel/power_management/pm_ilb_test.py
@@ -0,0 +1,59 @@
+#!/usr/bin/python
+''' This Python script interprets interrupt values.
+ Validates Ideal load balancer runs in same package where workload is
running
+'''
+
+import os
+import sys
+LIB_DIR = "%s/lib" % os.path.dirname(__file__)
+sys.path.append(LIB_DIR)
+from optparse import OptionParser
+from pm_sched_mc import *
+
+__author__ = "Poornima Nayak <mpna...@linux.vnet.ibm.com>"
+
+class Usage(Exception):
+ def __init__(self, msg):
+ self.msg = msg
+
+def main(argv=None):
+ if argv is None:
+ argv = sys.argv
+
+ usage = "-w"
+ parser = OptionParser(usage)
+ parser.add_option("-c", "--mc_level", dest="mc_level",
+ default=0, help="Sched mc power saving value 0/1/2")
+ parser.add_option("-t", "--smt_level", dest="smt_level",
+ default=0, help="Sched smt power saving value 0/1/2")
+ parser.add_option("-w", "--workload", dest="work_ld",
+ default="ebizzy", help="Workload can be ebizzy/kernbench")
+ (options, args) = parser.parse_args()
+
+ try:
+ count_num_cpu()
+ count_num_sockets()
+ if is_multi_socket():
+ set_sched_mc_power(options.mc_level)
+ if is_hyper_threaded():
+ set_sched_smt_power(options.smt_level)
+ map_cpuid_pkgid()
+ print "INFO: Created table mapping cpu to package"
+ background="no"
+ duration=120
+ pinned="yes"
+
+ trigger_workld(options.smt_level,options.work_ld, "single_job",
duration, background, pinned, "no")
+ generate_loc_intr_report()
+ status = validate_ilb(options.mc_level, options.smt_level)
+ reset_schedmc()
+ if is_hyper_threaded():
+ reset_schedsmt()
+ return(status)
+
+ except Exception, details:
+ print "INFO: Idle Load Balancer test failed", details
+ return(1)
+
+if __name__ == "__main__":
+ sys.exit(main())
diff --git a/testcases/kernel/power_management/pm_sched_domain.py
b/testcases/kernel/power_management/pm_sched_domain.py
new file mode 100755
index 0000000..a9e62a2
--- /dev/null
+++ b/testcases/kernel/power_management/pm_sched_domain.py
@@ -0,0 +1,56 @@
+#!/usr/bin/python
+''' This Python script validates sched domain information in dmesg
+ with information in sysfs topology
+'''
+
+import os
+import sys
+LIB_DIR = "%s/lib" % os.path.dirname(__file__)
+sys.path.append(LIB_DIR)
+from pm_sched_mc import *
+from optparse import OptionParser
+
+__author__ = "Poornima Nayak <mpna...@linux.vnet.ibm.com>"
+
+class Usage(Exception):
+ def __init__(self, msg):
+ self.msg = msg
+
+def main(argv=None):
+ if argv is None:
+ argv = sys.argv
+
+ usage = "-w"
+ parser = OptionParser(usage)
+ parser.add_option("-c", "--mc_level", dest="mc_level", default=-1,
+ help="Sched mc power saving value 0/1/2")
+ parser.add_option("-t", "--smt_level", dest="smt_level", default=-1,
+ help="Sched smt power saving value 0/1/2")
+ (options, args) = parser.parse_args()
+
+ try:
+ clear_dmesg()
+ count_num_cpu()
+ map_cpuid_pkgid()
+
+ if is_hyper_threaded() and int(options.smt_level) >= 0:
+ set_sched_smt_power(options.smt_level)
+
+ if int(options.mc_level) >= 0:
+ set_sched_mc_power(options.mc_level)
+ if int(options.smt_level) >= 0 or int(options.mc_level) >= 0:
+ status = verify_sched_domain_dmesg(options.mc_level,
options.smt_level)
+ reset_schedmc()
+ if is_hyper_threaded():
+ reset_schedsmt()
+ return(status)
+ else:
+ print "INFO: Invalid arguments given"
+ return 1
+ except Exception, details:
+ print "INFO: sched domain test failed: ", details
+ return(1)
+
+# Run test based on the command line arguments
+if __name__ == "__main__":
+ sys.exit(main())
diff --git a/testcases/kernel/power_management/runpwtests05.sh
b/testcases/kernel/power_management/runpwtests05.sh
index c086e3c..74c9f7c 100755
--- a/testcases/kernel/power_management/runpwtests05.sh
+++ b/testcases/kernel/power_management/runpwtests05.sh
@@ -55,7 +55,7 @@ fi
echo "max sched mc $max_sched_mc"
RC=0
for sched_mc in `seq 0 $max_sched_mc`; do
- sched_domain.py -c $sched_mc; ret=$?
+ pm_sched_domain.py -c $sched_mc; ret=$?
analyze_sched_domain_result $sched_mc $ret; RC=$?
done
if [ $RC -eq 0 ]; then
@@ -67,9 +67,9 @@ fi
# Testcase to validate sched_domain tree
RC=0
for sched_mc in `seq 0 $max_sched_mc`; do
- get_sched_values sched_smt; max_sched_smt=$?
+ pm_get_sched_values sched_smt; max_sched_smt=$?
for sched_smt in `seq 0 $max_sched_smt`; do
- sched_domain.py -c $sched_mc -t $sched_smt; ret=$?
+ pm_sched_domain.py -c $sched_mc -t $sched_smt; ret=$?
analyze_sched_domain_result $sched_mc $ret $sched_smt; RC=$?
done
done
diff --git a/testcases/kernel/power_management/runpwtests_exclusive01.sh
b/testcases/kernel/power_management/runpwtests_exclusive01.sh
index 2a7e437..089d3d1 100755
--- a/testcases/kernel/power_management/runpwtests_exclusive01.sh
+++ b/testcases/kernel/power_management/runpwtests_exclusive01.sh
@@ -56,7 +56,7 @@ for sched_mc in `seq 0 $max_sched_mc`; do
fi
for repeat_test in `seq 1 10`; do
#Testcase to validate CPU consolidation for sched_mc
- if cpu_consolidation.py -c $sched_mc -w $work_load ; then
+ if pm_cpu_consolidation.py -c $sched_mc -w $work_load ; then
: $(( sched_mc_pass_cnt += 1 ))
fi
done
@@ -81,7 +81,7 @@ for sched_mc in `seq 0 $max_sched_mc`; do
for repeat_test in `seq 1 10`; do
# Testcase to validate CPU consolidation for
# for sched_mc & sched_smt with stress=50%
- if cpu_consolidation.py -c $sched_mc -t $sched_smt \
+ if pm_cpu_consolidation.py -c $sched_mc -t $sched_smt \
-w $work_load ; then
: $(( sched_mc_smt_pass_cnt += 1 ))
fi
diff --git a/testcases/kernel/power_management/runpwtests_exclusive02.sh
b/testcases/kernel/power_management/runpwtests_exclusive02.sh
index af08482..1150600 100755
--- a/testcases/kernel/power_management/runpwtests_exclusive02.sh
+++ b/testcases/kernel/power_management/runpwtests_exclusive02.sh
@@ -54,7 +54,7 @@ for sched_smt in `seq 0 $max_sched_smt`; do
sched_smt_pass_cnt=0
stress="thread"
for repeat_test in `seq 1 10`; do
- if cpu_consolidation.py -t $sched_smt -w $work_load \
+ if pm_cpu_consolidation.py -t $sched_smt -w $work_load \
-s $stress; then
: $(( sched_smt_pass_cnt += 1 ))
fi
diff --git a/testcases/kernel/power_management/runpwtests_exclusive03.sh
b/testcases/kernel/power_management/runpwtests_exclusive03.sh
index 4e3c99e..20d8095 100755
--- a/testcases/kernel/power_management/runpwtests_exclusive03.sh
+++ b/testcases/kernel/power_management/runpwtests_exclusive03.sh
@@ -52,7 +52,7 @@ fi
# sched_mc is set to 0.
RC=0
for sched_mc in `seq 1 $max_sched_mc`; do
- if cpu_consolidation.py -v -c $sched_mc; then
+ if pm_cpu_consolidation.py -v -c $sched_mc; then
echo "Test PASS: CPU consolidation test by varying" \
"sched_mc $sched_mc to 0"
else
@@ -74,7 +74,7 @@ RC=0
for sched_mc in `seq 1 $max_sched_mc`; do
for sched_smt in `seq 1 $max_sched_smt`; do
if [ $sched_smt -eq $sched_mc ]; then
- if cpu_consolidation.py -v -c $sched_mc \
+ if pm_cpu_consolidation.py -v -c $sched_mc \
-t $sched_smt; then
echo "Test PASS: CPU consolidation test by" \
"varying sched_mc & sched_smt from" \
diff --git a/testcases/kernel/power_management/runpwtests_exclusive04.sh
b/testcases/kernel/power_management/runpwtests_exclusive04.sh
index 7958fc0..080c6b1 100755
--- a/testcases/kernel/power_management/runpwtests_exclusive04.sh
+++ b/testcases/kernel/power_management/runpwtests_exclusive04.sh
@@ -38,7 +38,7 @@ fi
# Vary only sched_smt from 1 to 0 when workload is running
# and ensure that tasks do not consolidate to single core
# when sched_smt is set to 0.
-if cpu_consolidation.py -v -t 1; then
+if pm_cpu_consolidation.py -v -t 1; then
tst_resm TPASS "CPU consolidation test by varying sched_smt from 1 to 0"
else
tst_resm TFAIL "CPU consolidation test by varying sched_smt from 1 to 0"
@@ -47,7 +47,7 @@ fi
# Vary only sched_smt from 2 to 0 when workload is running
# and ensure that tasks do not consolidate to single core
# when sched_smt is set to 0.
-if cpu_consolidation.py -v -t 2; then
+if pm_cpu_consolidation.py -v -t 2; then
tst_resm TPASS "CPU consolidation test by varying sched_smt from 2 to 0"
else
tst_resm TFAIL "CPU consolidation test by varying sched_smt from 2 to 0"
diff --git a/testcases/kernel/power_management/runpwtests_exclusive05.sh
b/testcases/kernel/power_management/runpwtests_exclusive05.sh
index 186297f..ffb65e4 100755
--- a/testcases/kernel/power_management/runpwtests_exclusive05.sh
+++ b/testcases/kernel/power_management/runpwtests_exclusive05.sh
@@ -54,7 +54,7 @@ for sched_mc in `seq 1 $max_sched_mc`; do
work_load="ebizzy"
fi
- ilb_test.py -c $sched_mc -w $work_load
+ pm_ilb_test.py -c $sched_mc -w $work_load
if [ $? -eq 0 ]; then
echo "Test PASS: ILB & workload in same package for" \
"sched_mc=$sched_mc"
@@ -78,7 +78,7 @@ for sched_mc in `seq 1 $max_sched_mc`; do
work_load="ebizzy"
fi
for sched_smt in `seq 1 $max_sched_smt`; do
- ilb_test.py -c $sched_mc -t sched_smt -w $work_load
+ pm_ilb_test.py -c $sched_mc -t sched_smt -w $work_load
if [ $? -eq 0 ]; then
echo "Test PASS: ILB & workload in same package for" \
"sched_mc=$sched_mc & sched_smt=$sched_smt"
diff --git a/testcases/kernel/power_management/sched_domain.py
b/testcases/kernel/power_management/sched_domain.py
deleted file mode 100755
index 3d19ac0..0000000
--- a/testcases/kernel/power_management/sched_domain.py
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/usr/bin/python
-''' This Python script validates sched domain information in dmesg
- with information in sysfs topology
-'''
-
-import os
-import sys
-LIB_DIR = "%s/lib" % os.path.dirname(__file__)
-sys.path.append(LIB_DIR)
-from sched_mc import *
-from optparse import OptionParser
-
-__author__ = "Poornima Nayak <mpna...@linux.vnet.ibm.com>"
-
-class Usage(Exception):
- def __init__(self, msg):
- self.msg = msg
-
-def main(argv=None):
- if argv is None:
- argv = sys.argv
-
- usage = "-w"
- parser = OptionParser(usage)
- parser.add_option("-c", "--mc_level", dest="mc_level", default=-1,
- help="Sched mc power saving value 0/1/2")
- parser.add_option("-t", "--smt_level", dest="smt_level", default=-1,
- help="Sched smt power saving value 0/1/2")
- (options, args) = parser.parse_args()
-
- try:
- clear_dmesg()
- count_num_cpu()
- map_cpuid_pkgid()
-
- if is_hyper_threaded() and int(options.smt_level) >= 0:
- set_sched_smt_power(options.smt_level)
-
- if int(options.mc_level) >= 0:
- set_sched_mc_power(options.mc_level)
- if int(options.smt_level) >= 0 or int(options.mc_level) >= 0:
- status = verify_sched_domain_dmesg(options.mc_level,
options.smt_level)
- reset_schedmc()
- if is_hyper_threaded():
- reset_schedsmt()
- return(status)
- else:
- print "INFO: Invalid arguments given"
- return 1
- except Exception, details:
- print "INFO: sched domain test failed: ", details
- return(1)
-
-# Run test based on the command line arguments
-if __name__ == "__main__":
- sys.exit(main())
--
1.9.3
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