Messages in this thread | | | From | Wang Nan <> | Subject | [PATCH 0/2] perf record: Fix --overwrite and clarify concepts | Date | Wed, 1 Nov 2017 05:53:25 +0000 |
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Kan reports that 'perf record --overwrite' not working as it should be.
Patch 1/2 fix a bug, map backward events to readonly ring buffer so kernel can overwrite that ring buffer.
Patch 2/2 clarify concepts of 'overwrite' and 'backward' in the source code by introducing the concept of 'flightrecorder' and convert many 'overwrite' to it to clarify that what we really want is a perf record flightrecorder mode, not only mapping the ring buffer overwritable.
Wang Nan (2): perf mmap: Fix perf backward recording perf record: Replace 'overwrite' by 'flightrecorder' for better naming
tools/perf/Documentation/perf-record.txt | 8 ++++---- tools/perf/builtin-record.c | 4 ++-- tools/perf/perf.h | 2 +- tools/perf/util/evlist.c | 8 +++++++- tools/perf/util/evsel.c | 6 +++--- tools/perf/util/evsel.h | 4 ++-- tools/perf/util/parse-events.c | 20 ++++++++++---------- tools/perf/util/parse-events.h | 4 ++-- tools/perf/util/parse-events.l | 4 ++-- 9 files changed, 33 insertions(+), 27 deletions(-)
-- 2.10.1
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