Date: Tue, 06 Jan 2026 08:55:47 +0000 From: George V. Neville-Neil <gnn@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 77153a491e3b - main - Split counting from sampling. Message-ID: <695cce13.be77.1543bcd9@gitrepo.freebsd.org>
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The branch main has been updated by gnn: URL: https://cgit.FreeBSD.org/src/commit/?id=77153a491e3b31475f5faddb21271a0a8e0d4a9b commit 77153a491e3b31475f5faddb21271a0a8e0d4a9b Author: George V. Neville-Neil <gnn@FreeBSD.org> AuthorDate: 2026-01-06 08:55:14 +0000 Commit: George V. Neville-Neil <gnn@FreeBSD.org> CommitDate: 2026-01-06 08:55:42 +0000 Split counting from sampling. --- tools/test/hwpmc/pmctest.py | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/tools/test/hwpmc/pmctest.py b/tools/test/hwpmc/pmctest.py index 8accdf09e69a..588fe6d79e83 100755 --- a/tools/test/hwpmc/pmctest.py +++ b/tools/test/hwpmc/pmctest.py @@ -42,7 +42,8 @@ def main(): parser = argparse.ArgumentParser(description='Exercise a program under hwpmc') parser.add_argument('--program', type=str, required=True, help='target program') parser.add_argument('--wait', action='store_true', help='Wait after each counter.') - parser.add_argument('--exercise', action='store_true', help='Exercise the program being studied using sampling counters.') + parser.add_argument('--count', action='store_true', help='Exercise the program being studied using counting mode pmcs.') + parser.add_argument('--sample', action='store_true', help='Exercise the program being studied using sampling mode pmcs.') args = parser.parse_args() @@ -52,22 +53,38 @@ def main(): print("no counters found") sys.exit() + if args.count == True and args.sample == True: + print("Choose one of --count OR --sample.") + sys.exit() + program = Path(args.program).name - if args.exercise == True: - tmpdir = tempfile.mkdtemp(prefix=program + "-", suffix="-pmc") + if args.count == True: + tmpdir = tempfile.mkdtemp(prefix=program + "-", suffix="-counting-pmc") + print("Exercising program ", args.program, " storing results data in ", tmpdir) + + if args.sample == True: + tmpdir = tempfile.mkdtemp(prefix=program + "-", suffix="-sampling-pmc") print("Exercising program ", args.program, " storing results data in ", tmpdir) for counter in counters: if counter in notcounter: continue - if args.exercise == True: + if args.count == True: + with open(tmpdir + "/" + program + "-" + counter + ".txt", 'w') as file: + p = subprocess.Popen(["pmcstat", + "-p", counter, args.program], + text=True, stderr=file, stdout=file) + result = p.communicate()[1] + print(result) + elif args.sample == True: p = subprocess.Popen(["pmcstat", "-O", tmpdir + "/" + program + "-" + counter + ".pmc", "-P", counter, args.program], text=True, stderr=PIPE) result = p.communicate()[1] print(result) + else: p = subprocess.Popen(["pmcstat", "-p", counter, args.program], text=True, stderr=PIPE)home | help
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