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| author | Kan Liang <[email protected]> | 2015-08-04 08:30:19 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2015-08-05 15:50:52 +0000 |
| commit | 320677123905fd1dd122895cd5fb870ee9e1380b (patch) | |
| tree | 82b523328ec900684341656326ec6bf0a1e5e382 /tools/perf/scripts/python/sched-migration.py | |
| parent | perf trace: Use vfs_getname syscall arg beautifier in more syscalls (diff) | |
| download | kernel-320677123905fd1dd122895cd5fb870ee9e1380b.tar.gz kernel-320677123905fd1dd122895cd5fb870ee9e1380b.zip | |
perf tools: Per-event time support
This patchkit adds the ability to turn off time stamps per event.
One usaful case for partial time is to work with per-event callgraph to
enable "PEBS threshold > 1" (https://lkml.org/lkml/2015/5/10/196), which
can significantly reduce the sampling overhead.
The event samples with time stamps off will not be ordered.
Signed-off-by: Kan Liang <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions