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Diffstat (limited to 'Documentation/trace/power.txt')
-rw-r--r-- | Documentation/trace/power.txt | 17 |
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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 | |||
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1 | The power tracer collects detailed information about C-state and P-state | ||
2 | transitions, instead of just looking at the high-level "average" | ||
3 | information. | ||
4 | |||
5 | There is a helper script found in scrips/tracing/power.pl in the kernel | ||
6 | sources which can be used to parse this information and create a | ||
7 | Scalable Vector Graphics (SVG) picture from the trace data. | ||
8 | |||
9 | To use this tracer: | ||
10 | |||
11 | echo 0 > /sys/kernel/debug/tracing/tracing_enabled | ||
12 | echo power > /sys/kernel/debug/tracing/current_tracer | ||
13 | echo 1 > /sys/kernel/debug/tracing/tracing_enabled | ||
14 | sleep 1 | ||
15 | echo 0 > /sys/kernel/debug/tracing/tracing_enabled | ||
16 | cat /sys/kernel/debug/tracing/trace | \ | ||
17 | perl scripts/tracing/power.pl > out.sv | ||