topic Hi Patrick, in Software Tuning, Performance Optimization & Platform Monitoring

Detecting CPU Temperature

Kevin — Mon, 15 Feb 2016 17:39:30 GMT

Hi everyone,

I am trying to detect the Intel CPU temperature inside the code, but I can't find any solution to do that in the forum/Google. Does anyone know there is any way to detect the Real-time temperature of CPU inside the code(Like library or other tools to do that)?

Thanks,

Jiawen

Hi Jiawen

PAgra — Tue, 16 Feb 2016 10:16:35 GMT

Hi Jiawen

You may be interested in the 'turbostat' tool: http://manpages.ubuntu.com/manpages/oneiric/man8/turbostat.8.html

Here some output from a IBM x3250-M5 (in idle state):
[root@x3250-m5 bin]# /usr/local/bin/turbostat -i 5
Avg_MHz %Busy Bzy_MHz TSC_MHz SMI CPU%c1 CPU%c3 CPU%c6 CPU%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt
1 0.02 2992 2993 0 0.02 99.96 0.00 0.00 30 32 4.18 95.77 0.00 0.00 4.73 0.16

(in bold, Temp and wattage).

Hope it helps.

Kind regards,

Patrick

Intel Performance Counter

Thomas_W_Intel — Tue, 16 Feb 2016 15:02:01 GMT

Intel Performance Counter Monitor provides a C++ API to measure hardware counters, including energy consumption. It doesn't report the absolute temperature but the thermal headroom, i.e. the difference to the maximum temperature that the processor allows.

Kind regards

Thomas

Hi Patrick,

Kevin — Tue, 16 Feb 2016 17:54:40 GMT

Hi Patrick,

I am really interested in this tool even though I can't use it inside a program like APIs/library. But I couldn't find the way to install it. When I download the files from Github (https://github.com/torvalds/linux/tree/master/tools/power/x86/turbostat) and try to make, the following errors show up. Do you have any ideas how to get it successfully

[liu@fornax Temp]$ sudo make

gcc -Wall -DMSRHEADER=/usr/include/asm/msr-index.h turbostat.c -o /home/liu/Temp/turbostat

turbostat.c: In function ‘get_counters’:

turbostat.c:1044: error: ‘MSR_KNL_CORE_C6_RESIDENCY’ undeclared (first use in this function)

turbostat.c:1044: error: (Each undeclared identifier is reported only once

turbostat.c:1044: error: for each function it appears in.)

turbostat.c:1064: error: ‘MSR_PKG_WEIGHTED_CORE_C0_RES’ undeclared (first use in this function)

turbostat.c:1066: error: ‘MSR_PKG_ANY_CORE_C0_RES’ undeclared (first use in this function)

turbostat.c:1068: error: ‘MSR_PKG_ANY_GFXE_C0_RES’ undeclared (first use in this function)

turbostat.c:1070: error: ‘MSR_PKG_BOTH_CORE_GFXE_C0_RES’ undeclared (first use in this function)

turbostat.c: In function ‘dump_hsw_turbo_ratio_limits’:

turbostat.c:1202: error: ‘MSR_TURBO_RATIO_LIMIT2’ undeclared (first use in this function)

turbostat.c: In function ‘dump_ivt_turbo_ratio_limits’:

turbostat.c:1224: error: ‘MSR_TURBO_RATIO_LIMIT1’ undeclared (first use in this function)

turbostat.c: In function ‘dump_nhm_turbo_ratio_limits’:

turbostat.c:1276: error: ‘MSR_TURBO_RATIO_LIMIT’ undeclared (first use in this function)

turbostat.c: In function ‘dump_config_tdp’:

turbostat.c:1411: error: ‘MSR_CONFIG_TDP_NOMINAL’ undeclared (first use in this function)

turbostat.c:1415: error: ‘MSR_CONFIG_TDP_LEVEL_1’ undeclared (first use in this function)

turbostat.c:1425: error: ‘MSR_CONFIG_TDP_LEVEL_2’ undeclared (first use in this function)

turbostat.c:1435: error: ‘MSR_CONFIG_TDP_CONTROL’ undeclared (first use in this function)

turbostat.c:1442: error: ‘MSR_TURBO_ACTIVATION_RATIO’ undeclared (first use in this function)

turbostat.c: In function ‘print_perf_limit’:

turbostat.c:2066: error: ‘MSR_CORE_PERF_LIMIT_REASONS’ undeclared (first use in this function)

turbostat.c:2101: error: ‘MSR_GFX_PERF_LIMIT_REASONS’ undeclared (first use in this function)

turbostat.c:2123: error: ‘MSR_RING_PERF_LIMIT_REASONS’ undeclared (first use in this function)

make: *** [turbostat] Error 1

Regards,

Jiawen

Patrick A. wrote:

Hi Jiawen

You may be interested in the 'turbostat' tool: http://manpages.ubuntu.com/manpages/oneiric/man8/turbostat.8.html

Here some output from a IBM x3250-M5 (in idle state):
[root@x3250-m5 bin]# /usr/local/bin/turbostat -i 5
Avg_MHz %Busy Bzy_MHz TSC_MHz SMI CPU%c1 CPU%c3 CPU%c6 CPU%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt
1 0.02 2992 2993 0 0.02 99.96 0.00 0.00 30 32 4.18 95.77 0.00 0.00 4.73 0.16

(in bold, Temp and wattage).

Hope it helps.

Kind regards,

Patrick

Hi Thomas,

Kevin — Tue, 16 Feb 2016 17:57:35 GMT

Hi Thomas,

It's a really good tool to get the performance collection. But it couldn't get the package CPU of real-time temperature which I want to collect.

Thanks,

Jiawen

Thomas Willhalm (Intel) wrote:

Intel Performance Counter Monitor provides a C++ API to measure hardware counters, including energy consumption. It doesn't report the absolute temperature but the thermal headroom, i.e. the difference to the maximum temperature that the processor allows.

Kind regards

Thomas

Jiawen,

Thomas_W_Intel — Tue, 16 Feb 2016 19:25:33 GMT

Jiawen,

What kind of processor are you using? The temperature sensors are not available on all platforms.

What does the included pcm tool report when you run it? Is the last column with the temperature available?

This is what I see on my (idle) laptop:

Hi Jiawen,

PAgra — Wed, 17 Feb 2016 07:32:56 GMT

Hi Jiawen,

In the .c file,I replaced the #include MSRHEADER with #include "msr-index.h" (attached, tar'ed).

Hope it helps.
Kind regards,
Patrick Agrain