Re: [Ilugc] How to know the memory size of processes
try ps -ax command. On Fri, Mar 20, 2009 at 4:01 PM, Shrinivasan T tshriniva...@gmail.comwrote: Friends. I want to know how much memory does a process takes. How to know this? Top is showing only for TOP processes. Thanks. -- Regards, T.Shrinivasan My experiences with Linux are here http://goinggnu.wordpress.com For Free and Open Source Jobs http://fossjobs.wordpress.com ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] How to know the memory size of processes
On Friday 20 March 2009 16:01:11 Shrinivasan T wrote: Top is showing only for TOP processes. man ps -- regards kg http://lawgon.livejournal.com ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] How to know the memory size of processes
On Friday 20 March 2009 16:04:42 sandeep mane wrote: try ps -ax command. '-' is deprecated and top posts ARE NOT WELCOME ON THIS LIST -- regards kg http://lawgon.livejournal.com ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] How to know the memory size of processes
Top is showing only for TOP processes. You can do a top -p pid once you get the pid of the process (from ps). Also, if you're running a recent version of top, hitting 'H' will toggle between displaying individual thread statistics and a consolidated view (if it's a multi-threaded process) ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] How to know the memory size of processes
Top is showing only for TOP processes. Try 'htop' -- Vikram Vincent +919448810822 http://swatantra.org/ ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] How to know the memory size of processes
I don remember where I got this really neat python script from , but
I generally use it to check out the memory usage, and have found it to
be quite accurate :
__
import sys, os, string
if os.getuid() !=0:
sys.stderr.write(Running as non-root user\n);
#sys.exit(1)
#if os.getuid() !=500:
#sys.stderr.write(Other than root only Satish can run this script\n);
#sys.exit(1)
PAGESIZE=os.sysconf(SC_PAGE_SIZE)/1024 #KiB
our_pid=os.getpid()
#(major,minor,release)
def kernel_ver():
kv=open(/proc/sys/kernel/osrelease).readline().split(.)[:3]
for char in -_:
kv[2]=kv[2].split(char)[0]
return (int(kv[0]), int(kv[1]), int(kv[2]))
kv=kernel_ver()
have_pss=0
#return Private,Shared
#Note shared is always a subset of rss (trs is not always)
def getMemStats(pid):
global have_pss
Private_lines=[]
Shared_lines=[]
Pss_lines=[]
Rss=int(open(/proc/+str(pid)+/statm).readline().split()[1])*PAGESIZE
if os.path.exists(/proc/+str(pid)+/smaps): #stat
for line in open(/proc/+str(pid)+/smaps).readlines(): #open
if line.startswith(Shared):
Shared_lines.append(line)
elif line.startswith(Private):
Private_lines.append(line)
elif line.startswith(Pss):
have_pss=1
Pss_lines.append(line)
Shared=sum([int(line.split()[1]) for line in Shared_lines])
Private=sum([int(line.split()[1]) for line in Private_lines])
#Note Shared + Private = Rss above
#The Rss in smaps includes video card mem etc.
if have_pss:
pss_adjust=0.5 #add 0.5KiB as this average error due to trunctation
Pss=sum([float(line.split()[1])+pss_adjust for line in Pss_lines])
Shared = Pss - Private
elif (2,6,1) = kv = (2,6,9):
Shared=0 #lots of overestimation, but what can we do?
Private = Rss
else:
Shared=int(open(/proc/+str(pid)+/statm).readline().split()[2])
Shared*=PAGESIZE
Private = Rss - Shared
return (Private, Shared)
def getCmdName(pid):
cmd = file(/proc/%d/status % pid).readline()[6:-1]
exe = os.path.basename(os.path.realpath(/proc/%d/exe % pid))
if exe.startswith(cmd):
cmd=exe #show non truncated version
#Note because we show the non truncated name
#one can have separated programs as follows:
#584.0 KiB + 1.0 MiB = 1.6 MiBmozilla-thunder (exe - bash)
# 56.0 MiB + 22.2 MiB = 78.2 MiBmozilla-thunderbird-bin
return cmd
cmds={}
shareds={}
count={}
for pid in os.listdir(/proc/):
try:
pid = int(pid) #note Thread IDs not listed in /proc/ which is good
if pid == our_pid: continue
except:
continue
try:
cmd = getCmdName(pid)
except:
#permission denied or
#kernel threads don't have exe links or
#process gone
continue
try:
private, shared = getMemStats(pid)
except:
continue #process gone
if shareds.get(cmd):
if have_pss: #add shared portion of PSS together
shareds[cmd]+=shared
elif shareds[cmd] shared: #just take largest shared val
shareds[cmd]=shared
else:
shareds[cmd]=shared
cmds[cmd]=cmds.setdefault(cmd,0)+private
if count.has_key(cmd):
count[cmd] += 1
else:
count[cmd] = 1
#Add shared mem for each program
total=0
for cmd in cmds.keys():
cmds[cmd]=cmds[cmd]+shareds[cmd]
total+=cmds[cmd] #valid if PSS available
sort_list = cmds.items()
sort_list.sort(lambda x,y:cmp(x[1],y[1]))
sort_list=filter(lambda x:x[1],sort_list) #get rid of zero sized processes
#The following matches du -h output
#see also human.py
def human(num, power=Ki):
powers=[Ki,Mi,Gi,Ti]
while num = 1000: #4 digits
num /= 1024.0
power=powers[powers.index(power)+1]
return %.1f %s % (num,power)
def cmd_with_count(cmd, count):
if count1:
return %s (%u) % (cmd, count)
else:
return cmd
print Private + Shared = RAM used\tProgram \n
for cmd in sort_list:
print %8sB + %8sB = %8sB\t%s % (human(cmd[1]-shareds[cmd[0]]),
human(shareds[cmd[0]]), human(cmd[1]),
cmd_with_count(cmd[0], count[cmd[0]]))
if have_pss:
print - * 33
print * 24 + %8sB % human(total)
print = * 33
print \n Private + Shared = RAM used\tProgram \n
#Warn of possible inaccuracies
#2 = accurate can total
#1 = accurate only considering each process in isolation
#0 = some shared mem not reported
#-1= all shared mem not reported
def shared_val_accuracy():
http://wiki.apache.org/spamassassin/TopSharedMemoryBug;
if kv[:2] == (2,4):
if open(/proc/meminfo).read().find(Inact_) == -1:
return 1
return 0
elif kv[:2] == (2,6):
if
Re: [Ilugc] How to know the memory size of processes
Thanks friends. For wonderful tools and script. -- Regards, T.Shrinivasan My experiences with Linux are here http://goinggnu.wordpress.com For Free and Open Source Jobs http://fossjobs.wordpress.com ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] How to know the memory size of processes
From: Shrinivasan T tshriniva...@gmail.com To: ILUG-C ilugc@ae.iitm.ac.in Sent: Friday, 20 March, 2009 4:01:11 PM Subject: [Ilugc] How to know the memory size of processes Friends. I want to know how much memory does a process takes. How to know this? Top is showing only for TOP processes. Thanks. -- Regards, T.Shrinivasan ___ You can use the following command: pmap pid Regards, R Rajendhran Bring your gang together. Do your thing. Find your favourite Yahoo! group at http://in.promos.yahoo.com/groups/ ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] How to know the memory size of processes
9. How to know the memory size of processes (Shrinivasan T) Friends. I want to know how much memory does a process takes. How to know this? Hi this might be of some help to you http://www.cyberciti.biz/tips/howto-find-memory-used-by-program.html Regards Sanjeev ___ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with unsubscribe password address in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
