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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-20 15:54:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-20 15:54:37 -0700 |
| commit | 467f9957d9283be40101d7255d06fae7e211ff4c (patch) | |
| tree | 71d155ab52b3a78bc88d0c8088b09b3c37f9357a /Documentation | |
| parent | 78f28b7c555359c67c2a0d23f7436e915329421e (diff) | |
| parent | cdf8073d6b2c6c5a3cd6ce0e6c1297157f7f99ba (diff) | |
| download | lwn-467f9957d9283be40101d7255d06fae7e211ff4c.tar.gz lwn-467f9957d9283be40101d7255d06fae7e211ff4c.zip | |
Merge branch 'perfcounters-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (58 commits)
perf_counter: Fix perf_copy_attr() pointer arithmetic
perf utils: Use a define for the maximum length of a trace event
perf: Add timechart help text and add timechart to "perf help"
tracing, x86, cpuidle: Move the end point of a C state in the power tracer
perf utils: Be consistent about minimum text size in the svghelper
perf timechart: Add "perf timechart record"
perf: Add the timechart tool
perf: Add a SVG helper library file
tracing, perf: Convert the power tracer into an event tracer
perf: Add a sample_event type to the event_union
perf: Allow perf utilities to have "callback" options without arguments
perf: Store trace event name/id pairs in perf.data
perf: Add a timestamp to fork events
sched_clock: Make it NMI safe
perf_counter: Fix up swcounter throttling
x86, perf_counter, bts: Optimize BTS overflow handling
perf sched: Add --input=file option to builtin-sched.c
perf trace: Sample timestamp and cpu when using record flag
perf tools: Increase MAX_EVENT_LENGTH
perf tools: Fix memory leak in read_ftrace_printk()
...
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/trace/power.txt | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/Documentation/trace/power.txt b/Documentation/trace/power.txt deleted file mode 100644 index cd805e16dc27..000000000000 --- a/Documentation/trace/power.txt +++ /dev/null @@ -1,17 +0,0 @@ -The power tracer collects detailed information about C-state and P-state -transitions, instead of just looking at the high-level "average" -information. - -There is a helper script found in scrips/tracing/power.pl in the kernel -sources which can be used to parse this information and create a -Scalable Vector Graphics (SVG) picture from the trace data. - -To use this tracer: - - echo 0 > /sys/kernel/debug/tracing/tracing_enabled - echo power > /sys/kernel/debug/tracing/current_tracer - echo 1 > /sys/kernel/debug/tracing/tracing_enabled - sleep 1 - echo 0 > /sys/kernel/debug/tracing/tracing_enabled - cat /sys/kernel/debug/tracing/trace | \ - perl scripts/tracing/power.pl > out.sv |