[PATCHSET 0/5] perf tools: Update on filtered entries' percentage output (v3)

From: Namhyung Kim
Date: Wed Jan 22 2014 - 18:29:08 EST


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 5, 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.

I only added the option to perf report for now. If it looks good to
you I'll add it to perf top too.

Any comments are welcome, thanks

Namhyung Kim (5):
perf tools: Count filtered entries to total period also
perf ui/tui: Add support for showing relative percentage
perf report: Add --percentage option
perf report: Add report.percentage config option
perf tools: Show absolute percentage by default

tools/perf/Documentation/perf-report.txt | 24 ++++++++++++++++++------
tools/perf/builtin-report.c | 28 +++++++++++++++++++++++++++-
tools/perf/util/event.c | 18 ++++++++----------
tools/perf/util/hist.c | 27 ++++++++++++++-------------
tools/perf/util/hist.h | 7 +++++++
tools/perf/util/symbol.h | 5 +++--
6 files changed, 77 insertions(+), 32 deletions(-)


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