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Commit e23da037 authored by Len Brown's avatar Len Brown
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tools turbostat: add summary option 

turbostat -s
cuts down on the amount of output, per user request.

also treak some output whitespace and the man page.
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent c16fa4f2
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Showing with 120 additions and 69 deletions
tools/power/x86/turbostat/turbostat.8
View file @ e23da037
......@@ -4,11 +4,13 @@ turbostat \- Report processor frequency and idle statistics
.SH SYNOPSIS
.ft B
.B turbostat
.RB [ "\-s" ]
.RB [ "\-v" ]
.RB [ "\-M MSR#" ]
.RB command
.br
.B turbostat
.RB [ "\-s" ]
.RB [ "\-v" ]
.RB [ "\-M MSR#" ]
.RB [ "\-i interval_sec" ]
......@@ -25,6 +27,8 @@ supports an "invariant" TSC, plus the APERF and MPERF MSRs.
on processors that additionally support C-state residency counters.
.SS Options
The \fB-s\fP option prints only a 1-line summary for each sample interval.
.PP
The \fB-v\fP option increases verbosity.
.PP
The \fB-M MSR#\fP option dumps the specified MSR,
......@@ -39,13 +43,14 @@ displays the statistics gathered since it was forked.
.SH FIELD DESCRIPTIONS
.nf
\fBpk\fP processor package number.
\fBcr\fP processor core number.
\fBcor\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.
\fB%c0\fP percent of the interval that the CPU retired instructions.
\fBGHz\fP average clock rate while the CPU was in c0 state.
\fBTSC\fP average GHz that the TSC ran during the entire interval.
\fB%c1, %c3, %c6\fP show the percentage residency in hardware core idle states.
\fB%pc3, %pc6\fP percentage residency in hardware package idle states.
\fB%c1, %c3, %c6, %c7\fP show the percentage residency in hardware core idle states.
\fB%pc2, %pc3, %pc6, %pc7\fP percentage residency in hardware package idle states.
.fi
.PP
.SH EXAMPLE
......@@ -53,25 +58,37 @@ Without any parameters, turbostat prints out counters ever 5 seconds.
(override interval with "-i sec" option, or specify a command
for turbostat to fork).
The first row of statistics reflect the average for the entire system.
The first row of statistics is a summary for the entire system.
Note that the summary is a weighted average.
Subsequent rows show per-CPU statistics.
.nf
[root@x980]# ./turbostat
cr CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
0.04 1.62 3.38 0.11 0.00 99.85 0.00 95.07
0 0 0.04 1.62 3.38 0.06 0.00 99.90 0.00 95.07
0 6 0.02 1.62 3.38 0.08 0.00 99.90 0.00 95.07
1 2 0.10 1.62 3.38 0.29 0.00 99.61 0.00 95.07
1 8 0.11 1.62 3.38 0.28 0.00 99.61 0.00 95.07
2 4 0.01 1.62 3.38 0.01 0.00 99.98 0.00 95.07
2 10 0.01 1.61 3.38 0.02 0.00 99.98 0.00 95.07
8 1 0.07 1.62 3.38 0.15 0.00 99.78 0.00 95.07
8 7 0.03 1.62 3.38 0.19 0.00 99.78 0.00 95.07
9 3 0.01 1.62 3.38 0.02 0.00 99.98 0.00 95.07
9 9 0.01 1.62 3.38 0.02 0.00 99.98 0.00 95.07
10 5 0.01 1.62 3.38 0.13 0.00 99.86 0.00 95.07
10 11 0.08 1.62 3.38 0.05 0.00 99.86 0.00 95.07
cor CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
0.60 1.63 3.38 2.91 0.00 96.49 0.00 76.64
0 0 0.59 1.62 3.38 4.51 0.00 94.90 0.00 76.64
0 6 1.13 1.64 3.38 3.97 0.00 94.90 0.00 76.64
1 2 0.08 1.62 3.38 0.07 0.00 99.85 0.00 76.64
1 8 0.03 1.62 3.38 0.12 0.00 99.85 0.00 76.64
2 4 0.01 1.62 3.38 0.06 0.00 99.93 0.00 76.64
2 10 0.04 1.62 3.38 0.02 0.00 99.93 0.00 76.64
8 1 2.85 1.62 3.38 11.71 0.00 85.44 0.00 76.64
8 7 1.98 1.62 3.38 12.58 0.00 85.44 0.00 76.64
9 3 0.36 1.62 3.38 0.71 0.00 98.93 0.00 76.64
9 9 0.09 1.62 3.38 0.98 0.00 98.93 0.00 76.64
10 5 0.03 1.62 3.38 0.09 0.00 99.87 0.00 76.64
10 11 0.07 1.62 3.38 0.06 0.00 99.87 0.00 76.64
.fi
.SH SUMMARY EXAMPLE
The "-s" option prints the column headers just once,
and then the one line system summary for each sample interval.
.nf
[root@x980]# ./turbostat -s
%c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
0.61 1.89 3.38 5.95 0.00 93.44 0.00 66.33
0.52 1.62 3.38 6.83 0.00 92.65 0.00 61.11
0.62 1.92 3.38 5.47 0.00 93.91 0.00 67.31
.fi
.SH VERBOSE EXAMPLE
The "-v" option adds verbosity to the output:
......@@ -101,33 +118,33 @@ until ^C while the other CPUs are mostly idle:
.nf
[root@x980 lenb]# ./turbostat cat /dev/zero > /dev/null
^Ccr CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
8.49 3.63 3.38 16.23 0.66 74.63 0.00 0.00
0 0 1.22 3.62 3.38 32.18 0.00 66.60 0.00 0.00
0 6 0.40 3.61 3.38 33.00 0.00 66.60 0.00 0.00
1 2 0.11 3.14 3.38 0.19 3.95 95.75 0.00 0.00
1 8 0.05 2.88 3.38 0.25 3.95 95.75 0.00 0.00
2 4 0.00 3.13 3.38 0.02 0.00 99.98 0.00 0.00
2 10 0.00 3.09 3.38 0.02 0.00 99.98 0.00 0.00
8 1 0.04 3.50 3.38 14.43 0.00 85.54 0.00 0.00
8 7 0.03 2.98 3.38 14.43 0.00 85.54 0.00 0.00
9 3 0.00 3.16 3.38 100.00 0.00 0.00 0.00 0.00
9 9 99.93 3.63 3.38 0.06 0.00 0.00 0.00 0.00
10 5 0.01 2.82 3.38 0.08 0.00 99.91 0.00 0.00
10 11 0.02 3.36 3.38 0.06 0.00 99.91 0.00 0.00
6.950866 sec
^C
cor CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
8.63 3.64 3.38 14.46 0.49 76.42 0.00 0.00
0 0 0.34 3.36 3.38 99.66 0.00 0.00 0.00 0.00
0 6 99.96 3.64 3.38 0.04 0.00 0.00 0.00 0.00
1 2 0.14 3.50 3.38 1.75 2.04 96.07 0.00 0.00
1 8 0.38 3.57 3.38 1.51 2.04 96.07 0.00 0.00
2 4 0.01 2.65 3.38 0.06 0.00 99.93 0.00 0.00
2 10 0.03 2.12 3.38 0.04 0.00 99.93 0.00 0.00
8 1 0.91 3.59 3.38 35.27 0.92 62.90 0.00 0.00
8 7 1.61 3.63 3.38 34.57 0.92 62.90 0.00 0.00
9 3 0.04 3.38 3.38 0.20 0.00 99.76 0.00 0.00
9 9 0.04 3.29 3.38 0.20 0.00 99.76 0.00 0.00
10 5 0.03 3.08 3.38 0.12 0.00 99.85 0.00 0.00
10 11 0.05 3.07 3.38 0.10 0.00 99.85 0.00 0.00
4.907015 sec
.fi
Above the cycle soaker drives cpu9 up 3.6 Ghz turbo limit
Above the cycle soaker drives cpu6 up 3.6 Ghz turbo limit
while the other processors are generally in various states of idle.
Note that cpu3 is an HT sibling sharing core9
with cpu9, and thus it is unable to get to an idle state
deeper than c1 while cpu9 is busy.
Note that cpu0 is an HT sibling sharing core0
with cpu6, and thus it is unable to get to an idle state
deeper than c1 while cpu6 is busy.
Note that turbostat reports average GHz of 3.61, while
the arithmetic average of the GHz column above is 3.24.
Note that turbostat reports average GHz of 3.64, while
the arithmetic average of the GHz column above is lower.
This is a weighted average, where the weight is %c0. ie. it is the total number of
un-halted cycles elapsed per time divided by the number of CPUs.
.SH NOTES
......@@ -167,6 +184,6 @@ http://www.intel.com/products/processor/manuals/
.SH "SEE ALSO"
msr(4), vmstat(8)
.PP
.SH AUTHORS
.SH AUTHOR
.nf
Written by Len Brown <len.brown@intel.com>
tools/power/x86/turbostat/turbostat.c
View file @ e23da037
......@@ -2,7 +2,7 @@
* turbostat -- show CPU frequency and C-state residency
* on modern Intel turbo-capable processors.
*
* Copyright (c) 2010, Intel Corporation.
* Copyright (c) 2012 Intel Corporation.
* Len Brown <len.brown@intel.com>
*
* This program is free software; you can redistribute it and/or modify it
......@@ -49,6 +49,7 @@
char *proc_stat = "/proc/stat";
unsigned int interval_sec = 5; /* set with -i interval_sec */
unsigned int verbose; /* set with -v */
unsigned int summary_only; /* set with -s */
unsigned int skip_c0;
unsigned int skip_c1;
unsigned int do_nhm_cstates;
......@@ -129,12 +130,16 @@ void print_header(void)
{
if (show_pkg)
fprintf(stderr, "pk");
if (show_pkg)
fprintf(stderr, " ");
if (show_core)
fprintf(stderr, " cr");
fprintf(stderr, "cor");
if (show_cpu)
fprintf(stderr, " CPU");
if (show_pkg || show_core || show_cpu)
fprintf(stderr, " ");
if (do_nhm_cstates)
fprintf(stderr, " %%c0 ");
fprintf(stderr, " %%c0");
if (has_aperf)
fprintf(stderr, " GHz");
fprintf(stderr, " TSC");
......@@ -187,6 +192,15 @@ void dump_list(struct counters *cnt)
dump_cnt(cnt);
}
/*
* column formatting convention & formats
* package: "pk" 2 columns %2d
* core: "cor" 3 columns %3d
* CPU: "CPU" 3 columns %3d
* GHz: "GHz" 3 columns %3.2
* TSC: "TSC" 3 columns %3.2
* percentage " %pc3" %6.2
*/
void print_cnt(struct counters *p)
{
double interval_float;
......@@ -197,23 +211,29 @@ void print_cnt(struct counters *p)
if (p == cnt_average) {
if (show_pkg)
fprintf(stderr, " ");
if (show_pkg && show_core)
fprintf(stderr, " ");
if (show_core)
fprintf(stderr, " ");
if (show_cpu)
fprintf(stderr, " ");
fprintf(stderr, " " " ");
} else {
if (show_pkg)
fprintf(stderr, "%d", p->pkg);
fprintf(stderr, "%2d", p->pkg);
if (show_pkg && show_core)
fprintf(stderr, " ");
if (show_core)
fprintf(stderr, "%4d", p->core);
fprintf(stderr, "%3d", p->core);
if (show_cpu)
fprintf(stderr, "%4d", p->cpu);
fprintf(stderr, " %3d", p->cpu);
}
/* %c0 */
if (do_nhm_cstates) {
if (show_pkg || show_core || show_cpu)
fprintf(stderr, " ");
if (!skip_c0)
fprintf(stderr, "%7.2f", 100.0 * p->mperf/p->tsc);
fprintf(stderr, "%6.2f", 100.0 * p->mperf/p->tsc);
else
fprintf(stderr, " ****");
}
......@@ -221,14 +241,14 @@ void print_cnt(struct counters *p)
/* GHz */
if (has_aperf) {
if (!aperf_mperf_unstable) {
fprintf(stderr, "%5.2f",
fprintf(stderr, " %3.2f",
1.0 * p->tsc / units * p->aperf /
p->mperf / interval_float);
} else {
if (p->aperf > p->tsc || p->mperf > p->tsc) {
fprintf(stderr, " ****");
fprintf(stderr, " ***");
} else {
fprintf(stderr, "%4.1f*",
fprintf(stderr, "%3.1f*",
1.0 * p->tsc /
units * p->aperf /
p->mperf / interval_float);
......@@ -241,7 +261,7 @@ void print_cnt(struct counters *p)
if (do_nhm_cstates) {
if (!skip_c1)
fprintf(stderr, "%7.2f", 100.0 * p->c1/p->tsc);
fprintf(stderr, " %6.2f", 100.0 * p->c1/p->tsc);
else
fprintf(stderr, " ****");
}
......@@ -252,13 +272,13 @@ void print_cnt(struct counters *p)
if (do_snb_cstates)
fprintf(stderr, " %6.2f", 100.0 * p->c7/p->tsc);
if (do_snb_cstates)
fprintf(stderr, " %5.2f", 100.0 * p->pc2/p->tsc);
fprintf(stderr, " %6.2f", 100.0 * p->pc2/p->tsc);
if (do_nhm_cstates)
fprintf(stderr, " %5.2f", 100.0 * p->pc3/p->tsc);
fprintf(stderr, " %6.2f", 100.0 * p->pc3/p->tsc);
if (do_nhm_cstates)
fprintf(stderr, " %5.2f", 100.0 * p->pc6/p->tsc);
fprintf(stderr, " %6.2f", 100.0 * p->pc6/p->tsc);
if (do_snb_cstates)
fprintf(stderr, " %5.2f", 100.0 * p->pc7/p->tsc);
fprintf(stderr, " %6.2f", 100.0 * p->pc7/p->tsc);
if (extra_msr_offset)
fprintf(stderr, " 0x%016llx", p->extra_msr);
putc('\n', stderr);
......@@ -267,12 +287,20 @@ void print_cnt(struct counters *p)
void print_counters(struct counters *counters)
{
struct counters *cnt;
static int printed;
if (!printed || !summary_only)
print_header();
if (num_cpus > 1)
print_cnt(cnt_average);
printed = 1;
if (summary_only)
return;
for (cnt = counters; cnt != NULL; cnt = cnt->next)
print_cnt(cnt);
......@@ -557,6 +585,7 @@ void insert_counters(struct counters **list,
return;
}
if (!summary_only)
show_cpu = 1; /* there is more than one CPU */
/*
......@@ -575,12 +604,14 @@ void insert_counters(struct counters **list,
while (prev->next && (prev->next->pkg < new->pkg)) {
prev = prev->next;
if (!summary_only)
show_pkg = 1; /* there is more than 1 package */
}
while (prev->next && (prev->next->pkg == new->pkg)
&& (prev->next->core < new->core)) {
prev = prev->next;
if (!summary_only)
show_core = 1; /* there is more than 1 core */
}
......@@ -1005,8 +1036,11 @@ void cmdline(int argc, char **argv)
progname = argv[0];
while ((opt = getopt(argc, argv, "+vi:M:")) != -1) {
while ((opt = getopt(argc, argv, "+svi:M:")) != -1) {
switch (opt) {
case 's':
summary_only++;
break;
case 'v':
verbose++;
break;
......
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