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tools/power turbostat: display SMI count by default

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The SMI counter is popular -- so display it by default
rather than requiring an option.  What the heck,
we've blown the 80 column budget on many systems already...

Note that the value displayed is the delta
during the measurement interval.
The absolute value of the counter can still be seen with
the generic 32-bit MSR option, ie.  -m 0x34

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown
2013-02-10 17:19:24 -05:00
parent 32e9518005
commit 1ed51011af
3 changed files with 39 additions and 24 deletions
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36
tools/power/x86/turbostat/turbostat.8
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@@ -31,8 +31,6 @@ The \fB-S\fP option limits output to a 1-line System Summary for each interval.
.PP
The \fB-v\fP option increases verbosity.
.PP
The \fB-s\fP option prints the SMI counter, equivalent to "-c 0x34"
.PP
The \fB-c MSR#\fP option includes the delta of the specified 32-bit MSR counter.
.PP
The \fB-C MSR#\fP option includes the delta of the specified 64-bit MSR counter.
@@ -186,26 +184,24 @@ This is a weighted average, where the weight is %c0. ie. it is the total number
un-halted cycles elapsed per time divided by the number of CPUs.
.SH SMI COUNTING EXAMPLE
On Intel Nehalem and newer processors, MSR 0x34 is a System Management Mode Interrupt (SMI) counter.
Using the -m option, you can display how many SMIs have fired since reset, or if there
are SMIs during the measurement interval, you can display the delta using the -d option.
This counter is shown by default under the "SMI" column.
.nf
[root@x980 ~]# turbostat -m 0x34
cor CPU %c0 GHz TSC MSR 0x034 %c1 %c3 %c6 %pc3 %pc6
1.41 1.82 3.38 0x00000000 8.92 37.82 51.85 17.37 0.55
0 0 3.73 2.03 3.38 0x00000055 1.72 48.25 46.31 17.38 0.55
0 6 0.14 1.63 3.38 0x00000056 5.30
1 2 2.51 1.80 3.38 0x00000056 15.65 29.33 52.52
1 8 0.10 1.65 3.38 0x00000056 18.05
2 4 1.16 1.68 3.38 0x00000056 5.87 24.47 68.50
2 10 0.10 1.63 3.38 0x00000056 6.93
8 1 3.84 1.91 3.38 0x00000056 1.36 50.65 44.16
8 7 0.08 1.64 3.38 0x00000056 5.12
9 3 1.82 1.73 3.38 0x00000056 7.59 24.21 66.38
9 9 0.09 1.68 3.38 0x00000056 9.32
10 5 1.66 1.65 3.38 0x00000056 15.10 50.00 33.23
10 11 1.72 1.65 3.38 0x00000056 15.05
[root@x980 ~]# turbostat
cor CPU %c0 GHz TSC SMI %c1 %c3 %c6 CTMP %pc3 %pc6
0.11 1.91 3.38 0 1.84 0.26 97.79 29 0.82 83.87
0 0 0.40 1.63 3.38 0 10.27 0.12 89.20 20 0.82 83.88
0 6 0.06 1.63 3.38 0 10.61
1 2 0.37 2.63 3.38 0 0.02 0.10 99.51 22
1 8 0.01 1.62 3.38 0 0.39
2 4 0.07 1.62 3.38 0 0.04 0.07 99.82 23
2 10 0.02 1.62 3.38 0 0.09
8 1 0.23 1.64 3.38 0 0.10 1.07 98.60 24
8 7 0.02 1.64 3.38 0 0.31
9 3 0.03 1.62 3.38 0 0.03 0.05 99.89 29
9 9 0.02 1.62 3.38 0 0.05
10 5 0.07 1.62 3.38 0 0.08 0.12 99.73 27
10 11 0.03 1.62 3.38 0 0.13
^C
[root@x980 ~]#
.fi
.SH NOTES