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Commit 09d51602 authored by Linus Torvalds's avatar Linus Torvalds
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Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 

Pull turbostat update from Len Brown:
 "Updates to the turbostat utility.

  Just one kernel dependency in this batch -- added a #define to
  msr-index.h"

* 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: correct dumped pkg-cstate-limit value
  tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL
  tools/power turbostat: correct DRAM RAPL units on recent Xeon processors
  tools/power turbostat: Initial Skylake support
  tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
  tools/power turbostat: modprobe msr, if needed
  tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2
  tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names
  x86 msr-index: define MSR_TURBO_RATIO_LIMIT,1,2
  tools/power turbostat: label base frequency
  tools/power turbostat: update PERF_LIMIT_REASONS decoding
  tools/power turbostat: simplify default output
parents 6162e4b0 e9257f5f
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arch/x86/include/uapi/asm/msr-index.h
+ 8
− 0
View file @ 09d51602
......@@ -61,6 +61,9 @@
#define MSR_OFFCORE_RSP_1 0x000001a7
#define MSR_NHM_TURBO_RATIO_LIMIT 0x000001ad
#define MSR_IVT_TURBO_RATIO_LIMIT 0x000001ae
#define MSR_TURBO_RATIO_LIMIT 0x000001ad
#define MSR_TURBO_RATIO_LIMIT1 0x000001ae
#define MSR_TURBO_RATIO_LIMIT2 0x000001af
#define MSR_LBR_SELECT 0x000001c8
#define MSR_LBR_TOS 0x000001c9
......@@ -165,6 +168,11 @@
#define MSR_PP1_ENERGY_STATUS 0x00000641
#define MSR_PP1_POLICY 0x00000642
#define MSR_PKG_WEIGHTED_CORE_C0_RES 0x00000658
#define MSR_PKG_ANY_CORE_C0_RES 0x00000659
#define MSR_PKG_ANY_GFXE_C0_RES 0x0000065A
#define MSR_PKG_BOTH_CORE_GFXE_C0_RES 0x0000065B
#define MSR_CORE_C1_RES 0x00000660
#define MSR_CC6_DEMOTION_POLICY_CONFIG 0x00000668
......
tools/power/x86/turbostat/Makefile
+ 5
− 1
View file @ 09d51602
CC = $(CROSS_COMPILE)gcc
BUILD_OUTPUT := $(PWD)
BUILD_OUTPUT := $(CURDIR)
PREFIX := /usr
DESTDIR :=
ifeq ("$(origin O)", "command line")
BUILD_OUTPUT := $(O)
endif
turbostat : turbostat.c
CFLAGS += -Wall
CFLAGS += -DMSRHEADER='"../../../../arch/x86/include/uapi/asm/msr-index.h"'
......
tools/power/x86/turbostat/turbostat.8
+ 78
− 60
View file @ 09d51602
......@@ -20,9 +20,11 @@ upon its completion.
The second method is to omit the command,
and turbostat displays statistics every 5 seconds.
The 5-second interval can be changed using the --interval option.
.PP
Some information is not available on older processors.
.SS Options
Options can be specified with a single or double '-', and only as much of the option
name as necessary to disambiguate it from others is necessary. Note that options are case-sensitive.
\fB--Counter MSR#\fP shows the delta of the specified 64-bit MSR counter.
.PP
\fB--counter MSR#\fP shows the delta of the specified 32-bit MSR counter.
......@@ -55,16 +57,20 @@ more than once may also enable internal turbostat debug information.
The \fBcommand\fP parameter forks \fBcommand\fP, and upon its exit,
displays the statistics gathered since it was forked.
.PP
.SH FIELD DESCRIPTIONS
.SH DEFAULT FIELD DESCRIPTIONS
.nf
\fBPackage\fP processor package number.
\fBCore\fP processor core number.
\fBCPU\fP Linux CPU (logical processor) number.
Note that multiple CPUs per core indicate support for Intel(R) Hyper-Threading Technology.
\fBCPU\fP Linux CPU (logical processor) number. Yes, it is okay that on many systems the CPUs are not listed in numerical order -- for efficiency reasons, turbostat runs in topology order, so HT siblings appear together.
\fBAVG_MHz\fP number of cycles executed divided by time elapsed.
\fB%Busy\fP percent of the interval that the CPU retired instructions, aka. % of time in "C0" state.
\fBBzy_MHz\fP average clock rate while the CPU was busy (in "c0" state).
\fBTSC_MHz\fP average MHz that the TSC ran during the entire interval.
.fi
.PP
.SH DEBUG FIELD DESCRIPTIONS
.nf
\fBPackage\fP processor package number.
\fBCore\fP processor core number.
Note that multiple CPUs per core indicate support for Intel(R) Hyper-Threading Technology (HT).
\fBCPU%c1, CPU%c3, CPU%c6, CPU%c7\fP show the percentage residency in hardware core idle states.
\fBCoreTmp\fP Degrees Celsius reported by the per-core Digital Thermal Sensor.
\fBPkgTtmp\fP Degrees Celsius reported by the per-package Package Thermal Monitor.
......@@ -81,63 +87,76 @@ Note that multiple CPUs per core indicate support for Intel(R) Hyper-Threading T
Without any parameters, turbostat displays statistics ever 5 seconds.
(override interval with "-i sec" option, or specify a command
for turbostat to fork).
.nf
[root@hsw]# ./turbostat
CPU Avg_MHz %Busy Bzy_MHz TSC_MHz
- 488 12.51 3898 3498
0 0 0.01 3885 3498
4 3897 99.99 3898 3498
1 0 0.00 3861 3498
5 0 0.00 3882 3498
2 1 0.02 3894 3498
6 2 0.06 3898 3498
3 0 0.00 3849 3498
7 0 0.00 3877 3498
.fi
.SH DEBUG EXAMPLE
The "--debug" option prints additional system information before measurements:
The first row of statistics is a summary for the entire system.
For residency % columns, the summary is a weighted average.
For Temperature columns, the summary is the column maximum.
For Watts columns, the summary is a system total.
Subsequent rows show per-CPU statistics.
.nf
[root@ivy]# ./turbostat
Core CPU 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 GFXWatt
- - 6 0.36 1596 3492 0 0.59 0.01 99.04 0.00 23 24 23.82 0.01 72.47 0.00 6.40 1.01 0.00
0 0 9 0.58 1596 3492 0 0.28 0.01 99.13 0.00 23 24 23.82 0.01 72.47 0.00 6.40 1.01 0.00
0 4 1 0.07 1596 3492 0 0.79
1 1 10 0.65 1596 3492 0 0.59 0.00 98.76 0.00 23
1 5 5 0.28 1596 3492 0 0.95
2 2 10 0.66 1596 3492 0 0.41 0.01 98.92 0.00 23
2 6 2 0.10 1597 3492 0 0.97
3 3 3 0.20 1596 3492 0 0.44 0.00 99.37 0.00 23
3 7 5 0.31 1596 3492 0 0.33
.fi
.SH DEBUG EXAMPLE
The "--debug" option prints additional system information before measurements:
.nf
turbostat version 4.0 10-Feb, 2015 - Len Brown <lenb@kernel.org>
CPUID(0): GenuineIntel 13 CPUID levels; family:model:stepping 0x6:3a:9 (6:58:9)
turbostat version 4.1 10-Feb, 2015 - Len Brown <lenb@kernel.org>
CPUID(0): GenuineIntel 13 CPUID levels; family:model:stepping 0x6:3c:3 (6:60:3)
CPUID(6): APERF, DTS, PTM, EPB
RAPL: 851 sec. Joule Counter Range, at 77 Watts
cpu0: MSR_NHM_PLATFORM_INFO: 0x81010f0012300
16 * 100 = 1600 MHz max efficiency
RAPL: 3121 sec. Joule Counter Range, at 84 Watts
cpu0: MSR_NHM_PLATFORM_INFO: 0x80838f3012300
8 * 100 = 800 MHz max efficiency
35 * 100 = 3500 MHz TSC frequency
cpu0: MSR_IA32_POWER_CTL: 0x0014005d (C1E auto-promotion: DISabled)
cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e008402 (UNdemote-C3, UNdemote-C1, demote-C3, demote-C1, locked: pkg-cstate-limit=2: pc6n)
cpu0: MSR_IA32_POWER_CTL: 0x0004005d (C1E auto-promotion: DISabled)
cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e000400 (UNdemote-C3, UNdemote-C1, demote-C3, demote-C1, UNlocked: pkg-cstate-limit=0: pc0)
cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x25262727
37 * 100 = 3700 MHz max turbo 4 active cores
38 * 100 = 3800 MHz max turbo 3 active cores
39 * 100 = 3900 MHz max turbo 2 active cores
39 * 100 = 3900 MHz max turbo 1 active cores
cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x00000006 (balanced)
cpu0: MSR_RAPL_POWER_UNIT: 0x000a1003 (0.125000 Watts, 0.000015 Joules, 0.000977 sec.)
cpu0: MSR_PKG_POWER_INFO: 0x01e00268 (77 W TDP, RAPL 60 - 0 W, 0.000000 sec.)
cpu0: MSR_PKG_POWER_LIMIT: 0x30000148268 (UNlocked)
cpu0: PKG Limit #1: ENabled (77.000000 Watts, 1.000000 sec, clamp DISabled)
cpu0: PKG Limit #2: DISabled (96.000000 Watts, 0.000977* sec, clamp DISabled)
cpu0: MSR_CORE_PERF_LIMIT_REASONS, 0x31200000 (Active: ) (Logged: Auto-HWP, Amps, MultiCoreTurbo, Transitions, )
cpu0: MSR_GFX_PERF_LIMIT_REASONS, 0x00000000 (Active: ) (Logged: )
cpu0: MSR_RING_PERF_LIMIT_REASONS, 0x0d000000 (Active: ) (Logged: Amps, PkgPwrL1, PkgPwrL2, )
cpu0: MSR_RAPL_POWER_UNIT: 0x000a0e03 (0.125000 Watts, 0.000061 Joules, 0.000977 sec.)
cpu0: MSR_PKG_POWER_INFO: 0x000002a0 (84 W TDP, RAPL 0 - 0 W, 0.000000 sec.)
cpu0: MSR_PKG_POWER_LIMIT: 0x428348001a82a0 (UNlocked)
cpu0: PKG Limit #1: ENabled (84.000000 Watts, 8.000000 sec, clamp DISabled)
cpu0: PKG Limit #2: ENabled (105.000000 Watts, 0.002441* sec, clamp DISabled)
cpu0: MSR_PP0_POLICY: 0
cpu0: MSR_PP0_POWER_LIMIT: 0x00000000 (UNlocked)
cpu0: Cores Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled)
cpu0: MSR_PP1_POLICY: 0
cpu0: MSR_PP1_POWER_LIMIT: 0x00000000 (UNlocked)
cpu0: GFX Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled)
cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00691400 (105 C)
cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x884e0000 (27 C)
cpu0: MSR_IA32_THERM_STATUS: 0x88580000 (17 C +/- 1)
cpu1: MSR_IA32_THERM_STATUS: 0x885a0000 (15 C +/- 1)
cpu2: MSR_IA32_THERM_STATUS: 0x88570000 (18 C +/- 1)
cpu3: MSR_IA32_THERM_STATUS: 0x884e0000 (27 C +/- 1)
...
cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00641400 (100 C)
cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x88340800 (48 C)
cpu0: MSR_IA32_THERM_STATUS: 0x88340000 (48 C +/- 1)
cpu1: MSR_IA32_THERM_STATUS: 0x88440000 (32 C +/- 1)
cpu2: MSR_IA32_THERM_STATUS: 0x88450000 (31 C +/- 1)
cpu3: MSR_IA32_THERM_STATUS: 0x88490000 (27 C +/- 1)
Core CPU Avg_MHz %Busy Bzy_MHz TSC_MHz SMI CPU%c1 CPU%c3 CPU%c6 CPU%c7 CoreTmp PkgTmp PkgWatt CorWatt GFXWatt
- - 493 12.64 3898 3498 0 12.64 0.00 0.00 74.72 47 47 21.62 13.74 0.00
0 0 4 0.11 3894 3498 0 99.89 0.00 0.00 0.00 47 47 21.62 13.74 0.00
0 4 3897 99.98 3898 3498 0 0.02
1 1 7 0.17 3887 3498 0 0.04 0.00 0.00 99.79 32
1 5 0 0.00 3885 3498 0 0.21
2 2 29 0.76 3895 3498 0 0.10 0.01 0.01 99.13 32
2 6 2 0.06 3896 3498 0 0.80
3 3 1 0.02 3832 3498 0 0.03 0.00 0.00 99.95 28
3 7 0 0.00 3879 3498 0 0.04
^C
.fi
The \fBmax efficiency\fP frequency, a.k.a. Low Frequency Mode, is the frequency
available at the minimum package voltage. The \fBTSC frequency\fP is the base
......@@ -147,6 +166,9 @@ should be sustainable on all CPUs indefinitely, given nominal power and cooling.
The remaining rows show what maximum turbo frequency is possible
depending on the number of idle cores. Note that not all information is
available on all processors.
.PP
The --debug option adds additional columns to the measurement ouput, including CPU idle power-state residency processor temperature sensor readinds.
See the field definitions above.
.SH FORK EXAMPLE
If turbostat is invoked with a command, it will fork that command
and output the statistics gathered when the command exits.
......@@ -154,27 +176,23 @@ eg. Here a cycle soaker is run on 1 CPU (see %c0) for a few seconds
until ^C while the other CPUs are mostly idle:
.nf
root@ivy: turbostat cat /dev/zero > /dev/null
root@hsw: turbostat cat /dev/zero > /dev/null
^C
Core CPU 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 GFXWatt
- - 496 12.75 3886 3492 0 13.16 0.04 74.04 0.00 36 36 0.00 0.00 0.00 0.00 23.15 17.65 0.00
0 0 22 0.57 3830 3492 0 0.83 0.02 98.59 0.00 27 36 0.00 0.00 0.00 0.00 23.15 17.65 0.00
0 4 9 0.24 3829 3492 0 1.15
1 1 4 0.09 3783 3492 0 99.91 0.00 0.00 0.00 36
1 5 3880 99.82 3888 3492 0 0.18
2 2 17 0.44 3813 3492 0 0.77 0.04 98.75 0.00 28
2 6 12 0.32 3823 3492 0 0.89
3 3 16 0.43 3844 3492 0 0.63 0.11 98.84 0.00 30
3 7 4 0.11 3827 3492 0 0.94
30.372243 sec
CPU Avg_MHz %Busy Bzy_MHz TSC_MHz
- 482 12.51 3854 3498
0 0 0.01 1960 3498
4 0 0.00 2128 3498
1 0 0.00 3003 3498
5 3854 99.98 3855 3498
2 0 0.01 3504 3498
6 3 0.08 3884 3498
3 0 0.00 2553 3498
7 0 0.00 2126 3498
10.783983 sec
.fi
Above the cycle soaker drives cpu5 up its 3.8 GHz turbo limit
while the other processors are generally in various states of idle.
Note that cpu1 and cpu5 are HT siblings within core1.
As cpu5 is very busy, it prevents its sibling, cpu1,
from entering a c-state deeper than c1.
Above the cycle soaker drives cpu5 up its 3.9 GHz turbo limit.
The first row shows the average MHz and %Busy across all the processors in the system.
Note that the Avg_MHz column reflects the total number of cycles executed
divided by the measurement interval. If the %Busy column is 100%,
......
tools/power/x86/turbostat/turbostat.c
+ 336
− 100
View file @ 09d51602
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