diff options
| author | Ian Rogers <irogers@google.com> | 2025-02-28 14:23:08 -0800 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-03-11 18:55:38 -0700 |
| commit | f7cffbabf78203e5b67e4b632741d43644a513ba (patch) | |
| tree | d153afbee0ef04877d8006ab3252fc42d6aa10a4 | |
| parent | 0dfcc7c86c91ffe9375e7146e19b77b1d6659b3d (diff) | |
perf python tracepoint: Switch to using parse_events
Rather than manually configuring an evsel, switch to using
parse_events for greater commonality with the rest of the perf code.
Reviewed-by: Howard Chu <howardchu95@gmail.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250228222308.626803-12-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
| -rwxr-xr-x | tools/perf/python/tracepoint.py | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/tools/perf/python/tracepoint.py b/tools/perf/python/tracepoint.py index bba68a6d4515..38b2b6d11f64 100755 --- a/tools/perf/python/tracepoint.py +++ b/tools/perf/python/tracepoint.py @@ -5,24 +5,23 @@ import perf -class tracepoint(perf.evsel): - def __init__(self, sys, name): - config = perf.tracepoint(sys, name) - perf.evsel.__init__(self, - type = perf.TYPE_TRACEPOINT, - config = config, - freq = 0, sample_period = 1, wakeup_events = 1, - sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU | perf.SAMPLE_RAW | perf.SAMPLE_TIME) - def main(): - tp = tracepoint("sched", "sched_switch") cpus = perf.cpu_map() threads = perf.thread_map(-1) + evlist = perf.parse_events("sched:sched_switch", cpus, threads) + # Disable tracking of mmaps and similar that are unnecessary. + for ev in evlist: + ev.tracking = False + # Configure evsels with default record options. + evlist.config() + # Simplify the sample_type and read_format of evsels + for ev in evlist: + ev.sample_type = ev.sample_type & ~perf.SAMPLE_IP + ev.read_format = 0 - evlist = perf.evlist(cpus, threads) - evlist.add(tp) evlist.open() evlist.mmap() + evlist.enable(); while True: evlist.poll(timeout = -1) |