Messages in this thread Patch in this message | | | From | Jiri Olsa <> | Subject | [PATCH 22/45] perf stat record: Store events IDs in perf data file | Date | Wed, 30 Sep 2015 16:10:35 +0200 |
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Store event IDs in evlist object so it get stored into perf.data file.
Also making perf_evlist__id_add_fd global.
Link: http://lkml.kernel.org/n/tip-v2xwpeots3tz08e44lej5y9e@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org> --- tools/perf/builtin-stat.c | 35 +++++++++++++++++++++++++++++++++++ tools/perf/util/evlist.c | 6 +++--- tools/perf/util/evlist.h | 3 +++ 3 files changed, 41 insertions(+), 3 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index fa5299db0d2d..7bd5bde5fa7c 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -320,6 +320,38 @@ static int perf_stat_synthesize_config(void) return 0; } +#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) + +static int __store_counter_ids(struct perf_evsel *counter, + struct cpu_map *cpus, + struct thread_map *threads) +{ + int cpu, thread; + + for (cpu = 0; cpu < cpus->nr; cpu++) { + for (thread = 0; thread < threads->nr; thread++) { + int fd = FD(counter, cpu, thread); + + if (perf_evlist__id_add_fd(evsel_list, counter, + cpu, thread, fd) < 0) + return -1; + } + } + + return 0; +} + +static int store_counter_ids(struct perf_evsel *counter) +{ + struct cpu_map *cpus = counter->cpus; + struct thread_map *threads = counter->threads; + + if (perf_evsel__alloc_id(counter, cpus->nr, threads->nr)) + return -ENOMEM; + + return __store_counter_ids(counter, cpus, threads); +} + static int __run_perf_stat(int argc, const char **argv) { int interval = stat_config.interval; @@ -384,6 +416,9 @@ static int __run_perf_stat(int argc, const char **argv) l = strlen(counter->unit); if (l > unit_width) unit_width = l; + + if (STAT_RECORD && store_counter_ids(counter)) + return -1; } if (perf_evlist__apply_filters(evsel_list, &counter)) { diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 89546228b8ed..7f27160618a3 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -534,9 +534,9 @@ void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel, evsel->id[evsel->ids++] = id; } -static int perf_evlist__id_add_fd(struct perf_evlist *evlist, - struct perf_evsel *evsel, - int cpu, int thread, int fd) +int perf_evlist__id_add_fd(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, int fd) { u64 read_data[4] = { 0, }; int id_idx = 1; /* The first entry is the counter value */ diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 66bc9d4c0869..36de92e5c8fb 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -97,6 +97,9 @@ perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist, void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel, int cpu, int thread, u64 id); +int perf_evlist__id_add_fd(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, int fd); int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd); int perf_evlist__alloc_pollfd(struct perf_evlist *evlist); -- 2.4.3
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