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authorAdrian Hunter <adrian.hunter@intel.com>2015-04-30 17:37:28 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-05-05 18:12:55 -0300
commit53c76b0e9ed5ed1f00371160f0be60402acba165 (patch)
treee04ff300ba98a33bdef77d1e13fa65244d1cc68a /tools/perf/Documentation/perf-script.txt
parente31f0d017ea19fce9f12f084e1c750a0e3b43680 (diff)
downloadlinux-53c76b0e9ed5ed1f00371160f0be60402acba165.tar.gz
perf auxtrace: Add option to synthesize events for transactions
Add AUX area tracing option 'x' to synthesize events for transactions. This will be used by Intel PT to synthesize an event record for each TSX start, commit or abort. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1430404667-10593-6-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-script.txt')
-rw-r--r--tools/perf/Documentation/perf-script.txt9
1 files changed, 5 insertions, 4 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index b29cd2f17d13..c82df572fac2 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -235,11 +235,12 @@ OPTIONS
b synthesize branches events
c synthesize branches events (calls only)
r synthesize branches events (returns only)
+ x synthesize transactions events
e synthesize error events
d create a debug log
- g synthesize a call chain for instructions events
+ g synthesize a call chain (use with i or x)
- The default is all events i.e. the same as --itrace=ibe
+ The default is all events i.e. the same as --itrace=ibxe
In addition, the period (default 100000) for instructions events
can be specified in units of:
@@ -250,8 +251,8 @@ OPTIONS
us microseconds
ns nanoseconds (default)
- Also the call chain size (default 16, max. 1024) for instructions
- events can be specified.
+ Also the call chain size (default 16, max. 1024) for instructions or
+ transactions events can be specified.
To disable decoding entirely, use --no-itrace.