Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#!/usr/bin/env python3
2# SPDX-License-Identifier: GPL-2.0
3# -*- python -*-
4# -*- coding: utf-8 -*-
5
6import argparse
7import perf
8
9def main(event: str):
10 evlist = perf.parse_events(event)
11
12 for evsel in evlist:
13 evsel.read_format = perf.FORMAT_TOTAL_TIME_ENABLED | perf.FORMAT_TOTAL_TIME_RUNNING
14
15 evlist.open()
16 evlist.enable()
17
18 count = 100000
19 while count > 0:
20 count -= 1
21
22 evlist.disable()
23
24 for evsel in evlist:
25 for cpu in evsel.cpus():
26 for thread in evsel.threads():
27 counts = evsel.read(cpu, thread)
28 print(f"For {evsel} val: {counts.val} enable: {counts.ena} run: {counts.run}")
29
30 evlist.close()
31
32if __name__ == '__main__':
33 ap = argparse.ArgumentParser()
34 ap.add_argument('-e', '--event', help="Events to open", default="cpu-clock,task-clock")
35 args = ap.parse_args()
36 main(args.event)