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| author | Ingo Molnar <mingo@elte.hu> | 2012-03-12 20:46:35 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-03-12 20:47:05 +0100 |
| commit | bea95c152dee1791dd02cbc708afbb115bb00f9a (patch) | |
| tree | af9994c42c5fdd81ba3dadd7b812e2fa85273353 /tools/perf/Documentation/perf-report.txt | |
| parent | f9b4eeb809c6d031cc9561cc34dd691701cb2c2a (diff) | |
| parent | 24bff2dc0f77b1f186b7bdf30060caf3df191a68 (diff) | |
| download | op-kernel-dev-bea95c152dee1791dd02cbc708afbb115bb00f9a.zip op-kernel-dev-bea95c152dee1791dd02cbc708afbb115bb00f9a.tar.gz | |
Merge branch 'perf/hw-branch-sampling' into perf/core
Merge reason: The 'perf record -b' hardware branch sampling feature is ready for upstream.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/Documentation/perf-report.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 9b430e9..87feeee 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -153,6 +153,16 @@ OPTIONS information which may be very large and thus may clutter the display. It currently includes: cpu and numa topology of the host system. +-b:: +--branch-stack:: + Use the addresses of sampled taken branches instead of the instruction + address to build the histograms. To generate meaningful output, the + perf.data file must have been obtained using perf record -b or + perf record --branch-filter xxx where xxx is a branch filter option. + perf report is able to auto-detect whether a perf.data file contains + branch stacks and it will automatically switch to the branch view mode, + unless --no-branch-stack is used. + SEE ALSO -------- linkperf:perf-stat[1], linkperf:perf-annotate[1] |
