diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2014-12-27 14:06:31 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-01-21 13:24:34 -0300 |
| commit | ec3d07cb630da5da3ccfdf2b2f5472cadedb9470 (patch) | |
| tree | bda418778e97bade38056786f48edcd912a1dd45 /mm/gup.c | |
| parent | 38259a170dfab4865968b592ae90b373e9f7d5b5 (diff) | |
perf diff: Print diff result more precisely
Current perf diff result is somewhat confusing since it sometimes hide
small result and sometimes there's no result. So do not hide small
result (less than 0.01%) and print "N/A" if baseline is not
recorded (for ratio and wdiff only). Blank means the baseline is
available but its pairs are not.
Before:
# Baseline Delta Shared Object Symbol
# ........ ....... ................. .........................
#
...
0.01% -0.01% [kernel.kallsyms] [k] native_write_msr_safe
0.01% [kernel.kallsyms] [k] scheduler_tick
0.01% [kernel.kallsyms] [k] native_read_msr_safe
0.00% [kernel.kallsyms] [k] __rcu_read_unlock
[kernel.kallsyms] [k] _raw_spin_lock
+0.01% [kernel.kallsyms] [k] apic_timer_interrupt
[kernel.kallsyms] [k] read_tsc
After:
# Baseline Delta Shared Object Symbol
# ........ ....... ................. .........................
#
...
0.01% -0.01% [kernel.kallsyms] [k] native_write_msr_safe
0.01% [kernel.kallsyms] [k] scheduler_tick
0.01% [kernel.kallsyms] [k] native_read_msr_safe
0.00% [kernel.kallsyms] [k] __rcu_read_unlock
+0.01% [kernel.kallsyms] [k] _raw_spin_lock
+0.01% [kernel.kallsyms] [k] apic_timer_interrupt
+0.01% [kernel.kallsyms] [k] read_tsc
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1419656793-32756-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'mm/gup.c')
0 files changed, 0 insertions, 0 deletions