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| author | Andi Kleen <ak@linux.intel.com> | 2017-03-20 21:17:09 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-03-23 15:42:30 +0100 |
| commit | 7f372a636d92e21d6fa41aebd6986ef590aefbfc (patch) | |
| tree | 93374339c16ace4382b7de0ff7b7e7b254de2da1 | |
| parent | perf stat: Output JSON MetricExpr metric (diff) | |
| download | linux-7f372a636d92e21d6fa41aebd6986ef590aefbfc.tar.xz linux-7f372a636d92e21d6fa41aebd6986ef590aefbfc.zip | |
perf list: Support printing MetricExpr with --debug
Output the metric expr in perf list when --debug is specified, so that
the user can check the formula.
Before:
% perf list
...
unc_m_power_channel_ppd
[Cycles where DRAM ranks are in power down (CKE) mode. Derived from unc_m_power_channel_ppd. Unit:
uncore_imc]
uncore_imc_2/event=0x85/
After:
% perf list --debug
...
unc_m_power_channel_ppd
[Cycles where DRAM ranks are in power down (CKE) mode. Derived from unc_m_power_channel_ppd. Unit:
uncore_imc]
Perf: uncore_imc_2/event=0x85/ MetricExpr: (unc_m_power_channel_ppd / unc_m_clockticks) * 100.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-12-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/pmu.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 0f1133aa3253..f819ad162b7c 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -1105,6 +1105,7 @@ struct sevent { char *topic; char *str; char *pmu; + char *metric_expr; }; static int cmp_sevent(const void *a, const void *b) @@ -1203,6 +1204,7 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag, aliases[j].topic = alias->topic; aliases[j].str = alias->str; aliases[j].pmu = pmu->name; + aliases[j].metric_expr = alias->metric_expr; j++; } if (pmu->selectable && @@ -1237,8 +1239,12 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag, printf("%*s", 8, "["); wordwrap(aliases[j].desc, 8, columns, 0); printf("]\n"); - if (verbose > 0) - printf("%*s%s/%s/\n", 8, "", aliases[j].pmu, aliases[j].str); + if (verbose > 0) { + printf("%*s%s/%s/ ", 8, "", aliases[j].pmu, aliases[j].str); + if (aliases[j].metric_expr) + printf(" MetricExpr: %s", aliases[j].metric_expr); + putchar('\n'); + } } else printf(" %-50s [Kernel PMU event]\n", aliases[j].name); printed++; |