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| author | Yabin Cui <yabinc@google.com> | 2015-10-07 15:00:46 -0700 |
|---|---|---|
| committer | Yabin Cui <yabinc@google.com> | 2015-10-12 20:10:45 -0700 |
| commit | f469c3d7f4466a2a31c3e837969c43c1e3bc4c90 (patch) | |
| tree | 26156da1cccc15a66e949fad0db87cb335c6d885 /simpleperf/event_selection_set.cpp | |
| parent | b1f20fa48b65b2f03f9303ffa2aa381cd1d3dd6f (diff) | |
| download | extras-f469c3d7f4466a2a31c3e837969c43c1e3bc4c90.tar.gz | |
Simpleperf: do stack unwinding while recording.
Dumping user's stack consumes lots of disk space, which makes long period recording
impossible. This patch does stack unwinding before writing to perf.data, so it doesn't
need to save user's stack. Previous behavior is still supported with --post-unwind option.
A record cache is used for online record processing.
Bug: 22229391
Change-Id: Idcc6ec46924fff3fcc8c165d62f8af875b173cd4
Diffstat (limited to 'simpleperf/event_selection_set.cpp')
| -rw-r--r-- | simpleperf/event_selection_set.cpp | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/simpleperf/event_selection_set.cpp b/simpleperf/event_selection_set.cpp index b7fcd581..e42b89a4 100644 --- a/simpleperf/event_selection_set.cpp +++ b/simpleperf/event_selection_set.cpp @@ -272,7 +272,6 @@ static bool ReadMmapEventDataForFd(std::unique_ptr<EventFd>& event_fd, return false; } *have_data = true; - event_fd->DiscardMmapData(size); } return true; } |