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| author |   Arjan van de Ven <arjan@linux.intel.com> | 2009-09-24 15:40:13 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-10-01 09:26:40 +0200 |
| commit | 39a90a8ef17fe6fbf4b45e46e3c10d3b8b4a3dea (patch) | |
| tree | 8aa8c5b0486d1d2cedace07bcb9e42189b4ccda5 /tools/perf/Documentation | |
| parent | perf top: Add poll_idle to the skip list (diff) | |
| download | linux-dev-39a90a8ef17fe6fbf4b45e46e3c10d3b8b4a3dea.tar.xz linux-dev-39a90a8ef17fe6fbf4b45e46e3c10d3b8b4a3dea.zip | |
perf timechart: Add a power-only mode
For doing work on the Linux power management components, I need to
make long (30+ seconds) traces. Currently, this then results in a
HUGE svg file, with mostly process data that isn't interesting.
This patch adds a --power-only mode to perf timechart that only
outputs the CPU power section of the SVG; this significantly
reduces the size of the SVG file, making even 30+ second traces
viewable with inkscape.
As a minor tweak for the same effect, the minimum text size is
decreased; current inkscape cannot zoom in deep enough to show text
this small, but it reduces inkscape compute time.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: peterz@infradead.org
LKML-Reference: <20090924154013.0675ab71@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-timechart.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt index 1c2ed3090cce..a7910099d6fd 100644 --- a/tools/perf/Documentation/perf-timechart.txt +++ b/tools/perf/Documentation/perf-timechart.txt @@ -31,6 +31,9 @@ OPTIONS -w:: --width=:: Select the width of the SVG file (default: 1000) +-p:: +--power-only:: + Only output the CPU power section of the diagram SEE ALSO |