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-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