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20-Jul-2017 |
Yabin Cui <yabinc@google.com> |
simpleperf: support tracing offcpu time.
1. Add --trace-offcpu option in record command, to record the callstack
when a thread is scheduled off cpu.
2. Change the report command to report time spent not running on cpu
when --trace-offcpu option is used for recording.
3. Add related unittests and runtests.
Bug: http://b/37572306
Test: run simpleperf_unit_test.
Change-Id: Ia50cc39c8dde0c8fb1b1facbcb26bbd0a7ab1351
/system/extras/simpleperf/runtest/run_and_sleep.cpp
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