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| author |   Charles Baylis <charles.baylis@linaro.org> | 2017-02-24 13:32:56 +0000 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-03-03 19:07:16 -0300 |
| commit | 7768f8dada66d6052fccbc2ddc375f3e650455b9 (patch) | |
| tree | 2635299692de4d4755ceaa50d739636c3418f778 /tools/perf/Documentation/perf-report.txt | |
| parent | perf evlist: Clarify a bit the use of perf_mmap->refcnt (diff) | |
| download | linux-dev-7768f8dada66d6052fccbc2ddc375f3e650455b9.tar.xz linux-dev-7768f8dada66d6052fccbc2ddc375f3e650455b9.zip | |
perf tools: Allow sorting by symbol size
Add new sort key 'symbol_size' to allow user to sort by symbol size, or
(more usefully) display the symbol size using --fields=...,symbol_size.
Committer note:
Testing it together with the recently added -q, to remove the headers,
and using the '+' sign with -s, to add the symbol_size sort order to
the default, which is '-s/--sort comm,dso,symbol':
# perf report -q -s +symbol_size | head -10
10.39% swapper [kernel.vmlinux] [k] intel_idle 270
3.45% swapper [kernel.vmlinux] [k] update_blocked_averages 1546
2.61% swapper [kernel.vmlinux] [k] update_load_avg 1292
2.36% swapper [kernel.vmlinux] [k] update_cfs_shares 240
1.83% swapper [kernel.vmlinux] [k] __hrtimer_run_queues 606
1.74% swapper [kernel.vmlinux] [k] update_cfs_rq_load_avg. 1187
1.66% swapper [kernel.vmlinux] [k] apic_timer_interrupt 152
1.60% CPU 0/KVM [kvm] [k] kvm_set_msr_common 3046
1.60% gnome-shell libglib-2.0.so.0 [.] g_slist_find 37
1.46% gnome-termina libglib-2.0.so.0 [.] g_hash_table_lookup 370
#
Signed-off-by: Charles Baylis <charles.baylis@linaro.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1487943176-13840-1-git-send-email-charles.baylis@linaro.org
[ Use symbol__size(), remove needless %lld + (long long) casting ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-report.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index c04cc0647c16..33f91906f5dc 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -80,6 +80,7 @@ OPTIONS - pid: command and tid of the task - dso: name of library or module executed at the time of sample - symbol: name of function executed at the time of sample + - symbol_size: size of function executed at the time of sample - parent: name of function matched to the parent regex filter. Unmatched entries are displayed as "[other]". - cpu: cpu number the task ran at the time of sample |