From: James Dingwall <james@dingwall.me.uk>
To: xen-devel@lists.xen.org
Subject: [james-xen@dingwall.me.uk: [Xen-users] Xen 4.2.0 - CPU Frequency Scaling]
Date: Sun, 30 Sep 2012 17:13:45 +0100 [thread overview]
Message-ID: <20120930161345.GA31109@dingwall.me.uk> (raw)
Hi,
I didn't get any response on xen-users for this issue but so I'm hoping
-devel can help.
I have had problems using cpu frequency scaling since the
xen-acpi-processor code was added to the mainline kernel source. I
wasn't sure if the problem I was seeing was related to the old version
(4.1.2) of Xen that I was using but now I'm on 4.2.0 and it still exists
I thought I would check if I have a misconfiguration or if I have
discovered a problem. My system is a dual AMD Opteron(tm) Processor
2423 HE on kernel 3.4.8.
The xen command line is:
console=vga,com2 com2=115200,8n1 dom0_mem=max:2048M dom0_max_vcpus=2
dom0_vcpus_pin
The CPU scaling information reported by xenpm is below. The problem
is that only cpuid 1 can be managed separately, all the others are
bundled together and cannot be handled independently which used to be
possible with the old xen kernel. If further information would be
useful please let me know.
Thanks,
James
# xenpm get-cpufreq-para
cpu id : 0
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 1
affected_cpus : 1
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 2
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 3
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 4
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 5
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 6
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 7
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 8
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 9
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 10
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
cpu id : 11
affected_cpus : 0 2 3 4 5 6 7 8 9 10 11
cpuinfo frequency : max [2000000] min [800000] cur [800000]
scaling_driver :
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2000000 1500000 1300000 1000000 *800000
scaling frequency : max [2000000] min [800000] cur [800000]
next reply other threads:[~2012-09-30 16:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-30 16:13 James Dingwall [this message]
2012-10-01 16:33 ` [james-xen@dingwall.me.uk: [Xen-users] Xen 4.2.0 - CPU Frequency Scaling] Konrad Rzeszutek Wilk
2012-10-01 20:27 ` James Dingwall
2012-10-02 19:08 ` Konrad Rzeszutek Wilk
2012-10-02 21:30 ` James Dingwall
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