Messages in this thread | | | From | Namhyung Kim <> | Subject | [PATCH 0/4] perf tools: Support reading PERF_FORMAT_LOST | Date | Mon, 15 Aug 2022 12:01:02 -0700 |
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Hello,
The kernel v6.0 added PERF_FORMAT_LOST which can read a number of lost samples for the given event. As it can change the output format of read(2) and perf sample data, it needs to access them carefully.
You can get the code from 'perf/read-lost-v1' brach on
git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
Thanks, Namhyung
Namhyung Kim (4): tools headers UAPI: Sync linux/perf_event.h with the kernel sources tools lib perf: Handle read format in perf_evsel__read() tools lib perf: Add a test case for read formats perf tools: Support reading PERF_FORMAT_LOST
tools/include/uapi/linux/perf_event.h | 5 +- tools/lib/perf/evsel.c | 72 ++++++++ tools/lib/perf/include/perf/event.h | 3 +- tools/lib/perf/include/perf/evsel.h | 4 +- tools/lib/perf/tests/test-evsel.c | 161 ++++++++++++++++++ tools/perf/tests/sample-parsing.c | 14 +- tools/perf/util/event.h | 18 +- tools/perf/util/evsel.c | 33 +++- .../scripting-engines/trace-event-python.c | 16 +- tools/perf/util/session.c | 32 ++-- tools/perf/util/synthetic-events.c | 34 +++- 11 files changed, 354 insertions(+), 38 deletions(-)
base-commit: 568035b01cfb107af8d2e4bd2fb9aea22cf5b868 -- 2.37.1.595.g718a3a8f04-goog
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