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| author | Kan Liang <[email protected]> | 2015-08-11 10:30:49 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2015-08-12 16:20:28 +0000 |
| commit | 9e207ddfa20781e56465ce9a537f0a377c9d34fb (patch) | |
| tree | 8eea5617ff1c5e997a591ef8733aae16e1668aee /tools/perf/scripts/python | |
| parent | perf callchain: Allow disabling call graphs per event (diff) | |
| download | kernel-9e207ddfa20781e56465ce9a537f0a377c9d34fb.tar.gz kernel-9e207ddfa20781e56465ce9a537f0a377c9d34fb.zip | |
perf report: Show call graph from reference events
Introduce --show-ref-call-graph for perf report to print reference
callgraph for no callgraph event.
Here is an example.
perf report --show-ref-call-graph --stdio
# To display the perf.data header info, please use
--header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 5 of event 'cpu/cpu-cycles,call-graph=fp/'
# Event count (approx.): 144985
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................ ........................................
#
72.30% 0.00% sleep [kernel.vmlinux] [k] entry_SYSCALL_64_fastpath
|
---entry_SYSCALL_64_fastpath
|
|--22.62%-- __GI___libc_nanosleep
--77.38%-- [...]
......
# Samples: 6 of event 'cpu/instructions,call-graph=no/', show reference callgraph
# Event count (approx.): 172780
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................ ........................................
#
73.16% 0.00% sleep [kernel.vmlinux] [k] entry_SYSCALL_64_fastpath
|
---entry_SYSCALL_64_fastpath
|
|--31.44%-- __GI___libc_nanosleep
--68.56%-- [...]
Signed-off-by: Kan Liang <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[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')
0 files changed, 0 insertions, 0 deletions