From: Ian Rogers Date: Fri, 28 Feb 2025 22:23:08 +0000 (-0800) Subject: perf python tracepoint: Switch to using parse_events X-Git-Tag: block-6.15-20250403~13^2~71 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=f7cffbabf78203e5b67e4b632741d43644a513ba;p=linux-block.git 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 Signed-off-by: Ian Rogers Tested-by: Arnaldo Carvalho de Melo Link: https://lore.kernel.org/r/20250228222308.626803-12-irogers@google.com Signed-off-by: Namhyung Kim --- 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)