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authorJin Yao <yao.jin@linux.intel.com>2017-12-05 17:03:07 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-12-27 18:15:45 +0300
commit56739444d861daa050624d40c7adff32c73e9980 (patch)
tree61b6f28bc1b5ab58d5416b9fa6e186e3020f4bc8 /tools/perf/util/stat.h
parent6a1e2c5c267358455a13bd8d59547430370c845a (diff)
downloadlinux-56739444d861daa050624d40c7adff32c73e9980.tar.xz
perf stat: Allocate shadow stats buffer for threads
After perf_evlist__create_maps() being executed, we can get all threads from /proc. And via thread_map__nr(), we can also get the number of threads. With the number of threads, the patch allocates a buffer which will record the shadow stats for these threads. The buffer pointer is saved in stat_config. Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1512482591-4646-8-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/stat.h')
-rw-r--r--tools/perf/util/stat.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index cfe4fb899633..2ed95dc72784 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -90,6 +90,8 @@ struct perf_stat_config {
bool scale;
FILE *output;
unsigned int interval;
+ struct runtime_stat *stats;
+ int stats_num;
};
void update_stats(struct stats *stats, u64 val);