Hello,
I added --percentage option to perf report to control display of
percentage of filtered entries.
usage: perf report [<options>]
--percentage <relative|absolute>
how to display percentage of filtered entries
"relative" means it's relative to filtered entries only so that the
sum of shown entries will be always 100%. "absolute" means it retains
original value before and after the filter applied. In patch 8/8, I
made the "absolute" as default since it makes more sense IMHO.
$ perf report -s comm
# Overhead Command
# ........ ............
#
74.19% cc1
7.61% gcc
6.11% as
4.35% sh
4.14% make
1.13% fixdep
...
$ perf report -s comm -c cc1,gcc --percentage absolute
# Overhead Command
# ........ ............
#
74.19% cc1
7.61% gcc
$ perf report -s comm -c cc1,gcc --percentage relative
# Overhead Command
# ........ ............
#
90.69% cc1
9.31% gcc
Note that it has zero effect if no filter was applied.
* changes in v5:
- fix 0 samples in relative percent output (Jiri)
- factor hists__total_period function (Jiri)
- share config parsing code with option parser (Jiri)
* changes in v4:
- support perf top and perf diff also (Jiri)
- add HIST_FILTER__HOST/GUEST (Jiri)
- retain both of filtered and total stats (Arnaldo)
- add 'F' hotkey on TUI (Jiri)
- rename config variable to have "hist." prefix
You can get this on the 'perf/percentage-v5' branch in my tree
git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
Any comments are welcome, thanks
Namhyung
Namhyung Kim (8):
perf tools: Count periods of filtered entries separately
perf hists: Add support for showing relative percentage
perf report: Add --percentage option
perf top: Add --percentage option
perf diff: Add --percentage option
perf tools: Add hist.percentage config option
perf ui/tui: Add 'F' hotkey to toggle percentage output
perf tools: Show absolute percentage by default
tools/perf/Documentation/perf-diff.txt | 21 +++++++++--
tools/perf/Documentation/perf-report.txt | 24 +++++++++---
tools/perf/Documentation/perf-top.txt | 18 +++++++--
tools/perf/builtin-diff.c | 35 ++++++++++++++---
tools/perf/builtin-report.c | 24 ++++++++++--
tools/perf/builtin-top.c | 2 +
tools/perf/ui/browsers/hists.c | 47 +++++++++++++++++------
tools/perf/ui/gtk/hists.c | 19 +++++-----
tools/perf/ui/hist.c | 8 ++--
tools/perf/util/config.c | 4 ++
tools/perf/util/event.c | 22 +++++------
tools/perf/util/hist.c | 65 +++++++++++++++++++++-----------
tools/perf/util/hist.h | 19 ++++++++++
tools/perf/util/symbol.h | 5 ++-
14 files changed, 233 insertions(+), 80 deletions(-)
--
1.7.11.7
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