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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull ACPI & power management update from Len Brown:
"Re-write of the turbostat tool.
lower overhead was necessary for measuring very large system when
they are very idle.
IVB support in intel_idle
It's what I run on my IVB, others should be able to also:-)
ACPICA core update
We have found some bugs due to divergence between Linux and the
upstream ACPICA base. Most of these patches are to reduce that
divergence to reduce the risk of future bugs.
Some cpuidle updates, mostly for non-Intel
More will be coming, as they depend on this part.
Some thermal management changes needed by non-ACPI systems.
Some _OST (OS Status Indication) updates for hot ACPI hot-plug."
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (51 commits)
Thermal: Documentation update
Thermal: Add Hysteresis attributes
Thermal: Make Thermal trip points writeable
ACPI/AC: prevent OOPS on some boxes due to missing check power_supply_register() return value check
tools/power: turbostat: fix large c1% issue
tools/power: turbostat v2 - re-write for efficiency
ACPICA: Update to version 20120711
ACPICA: AcpiSrc: Fix some translation issues for Linux conversion
ACPICA: Update header files copyrights to 2012
ACPICA: Add new ACPI table load/unload external interfaces
ACPICA: Split file: tbxface.c -> tbxfload.c
ACPICA: Add PCC address space to space ID decode function
ACPICA: Fix some comment fields
ACPICA: Table manager: deploy new firmware error/warning interfaces
ACPICA: Add new interfaces for BIOS(firmware) errors and warnings
ACPICA: Split exception code utilities to a new file, utexcep.c
ACPI: acpi_pad: tune round_robin_time
ACPICA: Update to version 20120620
ACPICA: Add support for implicit notify on multiple devices
ACPICA: Update comments; no functional change
...
This commit is contained in:
Linus Torvalds
@@ -1,4 +1,5 @@
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turbostat : turbostat.c
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CFLAGS += -Wall
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clean :
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rm -f turbostat
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@@ -27,7 +27,11 @@ supports an "invariant" TSC, plus the APERF and MPERF MSRs.
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on processors that additionally support C-state residency counters.
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.SS Options
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The \fB-s\fP option prints only a 1-line summary for each sample interval.
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The \fB-s\fP option limits output to a 1-line system summary for each interval.
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.PP
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The \fB-c\fP option limits output to the 1st thread in each core.
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.PP
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The \fB-p\fP option limits output to the 1st thread in each package.
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.PP
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The \fB-v\fP option increases verbosity.
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.PP
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@@ -65,19 +69,19 @@ Subsequent rows show per-CPU statistics.
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.nf
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[root@x980]# ./turbostat
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cor CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
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0.60 1.63 3.38 2.91 0.00 96.49 0.00 76.64
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0 0 0.59 1.62 3.38 4.51 0.00 94.90 0.00 76.64
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0 6 1.13 1.64 3.38 3.97 0.00 94.90 0.00 76.64
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1 2 0.08 1.62 3.38 0.07 0.00 99.85 0.00 76.64
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1 8 0.03 1.62 3.38 0.12 0.00 99.85 0.00 76.64
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2 4 0.01 1.62 3.38 0.06 0.00 99.93 0.00 76.64
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2 10 0.04 1.62 3.38 0.02 0.00 99.93 0.00 76.64
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8 1 2.85 1.62 3.38 11.71 0.00 85.44 0.00 76.64
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8 7 1.98 1.62 3.38 12.58 0.00 85.44 0.00 76.64
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9 3 0.36 1.62 3.38 0.71 0.00 98.93 0.00 76.64
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9 9 0.09 1.62 3.38 0.98 0.00 98.93 0.00 76.64
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10 5 0.03 1.62 3.38 0.09 0.00 99.87 0.00 76.64
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10 11 0.07 1.62 3.38 0.06 0.00 99.87 0.00 76.64
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0.09 1.62 3.38 1.83 0.32 97.76 1.26 83.61
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0 0 0.15 1.62 3.38 10.23 0.05 89.56 1.26 83.61
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0 6 0.05 1.62 3.38 10.34
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1 2 0.03 1.62 3.38 0.07 0.05 99.86
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1 8 0.03 1.62 3.38 0.06
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2 4 0.21 1.62 3.38 0.10 1.49 98.21
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2 10 0.02 1.62 3.38 0.29
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8 1 0.04 1.62 3.38 0.04 0.08 99.84
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8 7 0.01 1.62 3.38 0.06
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9 3 0.53 1.62 3.38 0.10 0.20 99.17
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9 9 0.02 1.62 3.38 0.60
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10 5 0.01 1.62 3.38 0.02 0.04 99.92
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10 11 0.02 1.62 3.38 0.02
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.fi
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.SH SUMMARY EXAMPLE
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The "-s" option prints the column headers just once,
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@@ -86,9 +90,10 @@ and then the one line system summary for each sample interval.
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.nf
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[root@x980]# ./turbostat -s
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%c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
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0.61 1.89 3.38 5.95 0.00 93.44 0.00 66.33
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0.52 1.62 3.38 6.83 0.00 92.65 0.00 61.11
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0.62 1.92 3.38 5.47 0.00 93.91 0.00 67.31
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0.23 1.67 3.38 2.00 0.30 97.47 1.07 82.12
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0.10 1.62 3.38 1.87 2.25 95.77 12.02 72.60
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0.20 1.64 3.38 1.98 0.11 97.72 0.30 83.36
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0.11 1.70 3.38 1.86 1.81 96.22 9.71 74.90
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.fi
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.SH VERBOSE EXAMPLE
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The "-v" option adds verbosity to the output:
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@@ -120,30 +125,28 @@ until ^C while the other CPUs are mostly idle:
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[root@x980 lenb]# ./turbostat cat /dev/zero > /dev/null
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^C
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cor CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
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8.63 3.64 3.38 14.46 0.49 76.42 0.00 0.00
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0 0 0.34 3.36 3.38 99.66 0.00 0.00 0.00 0.00
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0 6 99.96 3.64 3.38 0.04 0.00 0.00 0.00 0.00
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1 2 0.14 3.50 3.38 1.75 2.04 96.07 0.00 0.00
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1 8 0.38 3.57 3.38 1.51 2.04 96.07 0.00 0.00
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2 4 0.01 2.65 3.38 0.06 0.00 99.93 0.00 0.00
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2 10 0.03 2.12 3.38 0.04 0.00 99.93 0.00 0.00
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8 1 0.91 3.59 3.38 35.27 0.92 62.90 0.00 0.00
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8 7 1.61 3.63 3.38 34.57 0.92 62.90 0.00 0.00
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9 3 0.04 3.38 3.38 0.20 0.00 99.76 0.00 0.00
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9 9 0.04 3.29 3.38 0.20 0.00 99.76 0.00 0.00
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10 5 0.03 3.08 3.38 0.12 0.00 99.85 0.00 0.00
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10 11 0.05 3.07 3.38 0.10 0.00 99.85 0.00 0.00
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4.907015 sec
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8.86 3.61 3.38 15.06 31.19 44.89 0.00 0.00
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0 0 1.46 3.22 3.38 16.84 29.48 52.22 0.00 0.00
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0 6 0.21 3.06 3.38 18.09
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1 2 0.53 3.33 3.38 2.80 46.40 50.27
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1 8 0.89 3.47 3.38 2.44
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2 4 1.36 3.43 3.38 9.04 23.71 65.89
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2 10 0.18 2.86 3.38 10.22
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8 1 0.04 2.87 3.38 99.96 0.01 0.00
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8 7 99.72 3.63 3.38 0.27
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9 3 0.31 3.21 3.38 7.64 56.55 35.50
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9 9 0.08 2.95 3.38 7.88
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10 5 1.42 3.43 3.38 2.14 30.99 65.44
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10 11 0.16 2.88 3.38 3.40
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.fi
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Above the cycle soaker drives cpu6 up 3.6 Ghz turbo limit
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Above the cycle soaker drives cpu7 up its 3.6 Ghz turbo limit
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while the other processors are generally in various states of idle.
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Note that cpu0 is an HT sibling sharing core0
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with cpu6, and thus it is unable to get to an idle state
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deeper than c1 while cpu6 is busy.
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Note that cpu1 and cpu7 are HT siblings within core8.
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As cpu7 is very busy, it prevents its sibling, cpu1,
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from entering a c-state deeper than c1.
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Note that turbostat reports average GHz of 3.64, while
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Note that turbostat reports average GHz of 3.63, while
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the arithmetic average of the GHz column above is lower.
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This is a weighted average, where the weight is %c0. ie. it is the total number of
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un-halted cycles elapsed per time divided by the number of CPUs.
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File diff suppressed because it is too large
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