( I'd already posted this at xen-users; no traction to date )
I'm running linux kernel
lsb_release -rd
Description: openSUSE Leap 15.1
Release: 15.1
uname -rm
5.4.14-24.gfc4ea7a-default x86_64
dmesg | grep DMI:
[ 0.000000] DMI: Supermicro X10SAT/X10SAT, BIOS 3.0
05/26/2015
cat /proc/cpuinfo | grep "model name" | head -n 1
model name : Intel(R) Xeon(R) CPU E3-1220 v3 @ 3.10GHz
kernel & xen are pkg-installed from my KernelStable and Virtualization-Xen
repos @ OBS.
BIOS *is* setup for max cstate support.
Xeon E3-1220 does support intel_pstate driver.
Testing first,
(1) boot, NO XEN
pstate driver's init'd
dmesg | egrep -i "intel_pstate"
[ 6.132964] intel_pstate: Intel P-state driver initializing
pstate/cstate info
cat /sys/module/intel_idle/parameters/max_cstate
9
cd /sys/devices/system/cpu/cpu0/cpuidle
for state in state{0..9}
do echo c-$state `cat $state/name` `cat $state/latency`
done
c-state0 POLL 0
c-state1 C1 2
c-state2 C1E 10
c-state3 C3 33
c-state4 C6 133
c-state5 C7s 166
cat: state6/name: No such file or directory
cat: state6/latency: No such file or directory
c-state6
cat: state7/name: No such file or directory
cat: state7/latency: No such file or directory
c-state7
cat: state8/name: No such file or directory
cat: state8/latency: No such file or directory
c-state8
cat: state9/name: No such file or directory
cat: state9/latency: No such file or directory
c-state9
cpufreq scaling info's available,
cpupower frequency-info
analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by
software: 0
maximum transition latency: Cannot determine or is not
supported.
hardware limits: 800 MHz - 3.50 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 800 MHz and 3.50
GHz.
The governor "powersave" may decide which
speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 799 MHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
& scaling is in effect,
cat /proc/cpuinfo | grep MHz
cpu MHz : 798.106
cpu MHz : 798.129
cpu MHz : 798.964
cpu MHz : 798.154
(2) boot, WITH Xen 4.13
rpm -qa | grep -i xen | sort
grub2-x86_64-xen-2.04-lp151.6.5.noarch
xen-4.13.0_04-lp151.688.2.x86_64
xen-libs-4.13.0_04-lp151.688.2.x86_64
xen-tools-4.13.0_04-lp151.688.2.x86_64
Xen cmd line includes,
grep options= /boot/grub2/xen-4.13.0_04-lp151.688.cfg
[config.1]
options=dom0=pvh dom0-iommu=map-reserved
dom0_mem=4016M,max:4096M dom0_max_vcpus=4 cpufreq=xen cpuidle ucode=scan ...
intel_pstate support is now DISABLED for this cpu
xl dmesg | grep pstate
[ 6.851121] intel_pstate: CPU model not supported
c-states report,
xenpm get-cpuidle-states 0
All C-states allowed
cpu id : 0
total C-states : 6
idle time(ms) : 45780911
C0 : transition [ 3204855]
residency [ 160769 ms]
C1 : transition [ 9204]
residency [ 1018 ms]
C2 : transition [ 10181]
residency [ 2848 ms]
C3 : transition [ 22784]
residency [ 17236 ms]
C4 : transition [ 7181]
residency [ 11793 ms]
C5 : transition [ 3155504]
residency [ 45668846 ms]
pc2 : [ 1685 ms]
pc3 : [ 30695 ms]
cc3 : [ 16858 ms]
cc6 : [ 11640 ms]
cc7 : [ 45602872 ms]
NO cpupower frequency-info is available
cpupower frequency-info
analyzing CPU 0:
no or unknown cpufreq driver is active on this CPU
CPUs which run at the same hardware frequency: Not Available
CPUs which need to have their frequency coordinated by
software: Not Available
maximum transition latency: Cannot determine or is not
supported.
Not Available
available cpufreq governors: Not Available
Unable to determine current policy
current CPU frequency: Unable to call hardware
current CPU frequency: Unable to call to kernel
boost state support:
Supported: no
Active: no
and scaling is NOT in effect
cat /proc/cpuinfo | grep MHz
cpu MHz : 3092.828
cpu MHz : 3092.828
cpu MHz : 3092.828
cpu MHz : 3092.828
attempt to add acpi-cpufreq module fails
lsmod | grep acpi-cpufreq
(empty)
find /lib/modules/ | grep acpi-cpu
/lib/modules/5.4.14-24.gfc4ea7a-default/kernel/drivers/cpufreq/acpi-cpufreq.ko
modprobe acpi-cpufreq
modprobe: ERROR: could not insert 'acpi_cpufreq': No such device
insmod
/lib/modules/5.4.14-24.gfc4ea7a-default/kernel/drivers/cpufreq/acpi-cpufreq.ko
insmod: ERROR: could not insert module
/lib/modules/5.4.14-24.gfc4ea7a-default/kernel/drivers/cpufreq/acpi-cpufreq.ko:
No such device
Is this bug, or config?
--
To unsubscribe, e-mail: [email protected]
To contact the owner, e-mail: [email protected]
