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author | Jiri Olsa <jolsa@redhat.com> | 2016-02-16 16:01:43 +0100 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-02-16 17:13:00 -0300 |
commit | 720e98b5faf10cfd12b7821dbdcc41c9747bd13e (patch) | |
tree | 3614ba5106487c4c42091b252ac6d92800bf7d5c /tools/perf/util/header.h | |
parent | dd629cc0975349c99d5483402bca1ef16313c209 (diff) | |
download | linux-720e98b5faf10cfd12b7821dbdcc41c9747bd13e.tar.gz linux-720e98b5faf10cfd12b7821dbdcc41c9747bd13e.tar.bz2 linux-720e98b5faf10cfd12b7821dbdcc41c9747bd13e.zip |
perf tools: Add perf data cache feature
Storing CPU cache details under perf data. It's stored as new
HEADER_CACHE feature and it's displayed under header info with -I
option:
$ perf report --header-only -I
...
# CPU cache info:
# L1 Data 32K [0-1]
# L1 Instruction 32K [0-1]
# L1 Data 32K [2-3]
# L1 Instruction 32K [2-3]
# L2 Unified 256K [0-1]
# L2 Unified 256K [2-3]
# L3 Unified 4096K [0-3]
...
All distinct caches are stored/displayed.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20160216150143.GA7119@krava.brq.redhat.com
[ Fixed leak on process_caches(), s/cache_level/cpu_cache_level/g ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/header.h')
-rw-r--r-- | tools/perf/util/header.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index cff9892452ee..3d87ca823c0a 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -32,6 +32,7 @@ enum { HEADER_GROUP_DESC, HEADER_AUXTRACE, HEADER_STAT, + HEADER_CACHE, HEADER_LAST_FEATURE, HEADER_FEAT_BITS = 256, }; |