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perf tools: Add test_generic_metric function

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Adding test_generic_metric that prepares and runs given metric over the
data from struct runtime_stat object.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200602214741.1218986-12-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2020-06-02 23:47:39 +02:00 committed by Arnaldo Carvalho de Melo
parent 9afe5658a6
commit 6d432c4c8a
2 changed files with 17 additions and 0 deletions
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14
tools/perf/util/stat-shadow.c
View File

@ -842,6 +842,20 @@ static void generic_metric(struct perf_stat_config *config,
expr__ctx_clear(&pctx);
}
double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_stat *st)
{
struct expr_parse_ctx pctx;
double ratio;
if (prepare_metric(mexp->metric_events, &pctx, cpu, st) < 0)
return 0.;
if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1))
return 0.;
return ratio;
}
void perf_stat__print_shadow_stats(struct perf_stat_config *config,
struct evsel *evsel,
double avg, int cpu,

3
tools/perf/util/stat.h
View File

@ -230,4 +230,7 @@ perf_evlist__print_counters(struct evlist *evlist,
struct target *_target,
struct timespec *ts,
int argc, const char **argv);
struct metric_expr;
double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_stat *st);
#endif