Commit-ID: f594bae08183fb6b57db55387794ece3e1edf6f6
Gitweb: http://git.kernel.org/tip/f594bae08183fb6b57db55387794ece3e1edf6f6
Author: Borislav Petkov <[email protected]>
AuthorDate: Mon, 7 Mar 2016 16:44:44 -0300
Committer: Ingo Molnar <[email protected]>
CommitDate: Tue, 8 Mar 2016 10:11:18 +0100
perf stat: Document --detailed option
I'm surprised this remained undocumented since at least 2011. And it is
actually a very useful switch, as Steve and I came to realize recently.
Add the text from
2cba3ffb9a9d ("perf stat: Add -d -d and -d -d -d options to show more CPU
events")
which added the incrementing aspect to -d.
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Fixes: 2cba3ffb9a9d ("perf stat: Add -d -d and -d -d -d options to show more
CPU events")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
tools/perf/Documentation/perf-stat.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/perf/Documentation/perf-stat.txt
b/tools/perf/Documentation/perf-stat.txt
index 52ef7a9..14d9e8f 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -69,6 +69,14 @@ report::
--scale::
scale/normalize counter values
+-d::
+--detailed::
+ print more detailed statistics, can be specified up to 3 times
+
+ -d: detailed events, L1 and LLC data cache
+ -d -d: more detailed events, dTLB and iTLB events
+ -d -d -d: very detailed events, adding prefetch events
+
-r::
--repeat=<n>::
repeat command and print average + stddev (max: 100). 0 means forever.
