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Date: Sat, 23 Sep 2023 09:30:33 +0000
From: Yang Jihong <yangjihong1@...wei.com>
To: <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
<mark.rutland@....com>, <alexander.shishkin@...ux.intel.com>,
<jolsa@...nel.org>, <namhyung@...nel.org>, <irogers@...gle.com>,
<adrian.hunter@...el.com>, <linux-perf-users@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
CC: <yangjihong1@...wei.com>
Subject: [PATCH 0/4] perf bench messaging: Kill child processes when exit abnormally in process mode
If perf bench messaging in process mode exits abnormally, the forked child
processes does not exit.
The test result is as follows:
# perf bench sched messaging -l 1000000 -g 1 &
[4] 553
# Running 'sched/messaging' benchmark:
# kill -15 533
# ps -ef | grep perf
root 425 371 0 09:11 pts/0 00:00:00 perf bench sched messaging -l 1000000 -g 1
root 426 425 17 09:11 pts/0 00:01:56 perf bench sched messaging -l 1000000 -g 1
root 427 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 428 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 429 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 430 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 431 425 17 09:11 pts/0 00:01:56 perf bench sched messaging -l 1000000 -g 1
root 432 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 433 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 434 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 435 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 436 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 437 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 438 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 439 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 440 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 441 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 442 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 443 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 444 425 17 09:11 pts/0 00:01:54 perf bench sched messaging -l 1000000 -g 1
root 445 425 17 09:11 pts/0 00:01:55 perf bench sched messaging -l 1000000 -g 1
root 446 425 16 09:11 pts/0 00:01:50 perf bench sched messaging -l 1000000 -g 1
root 447 425 16 09:11 pts/0 00:01:49 perf bench sched messaging -l 1000000 -g 1
root 448 425 16 09:11 pts/0 00:01:50 perf bench sched messaging -l 1000000 -g 1
root 449 425 16 09:11 pts/0 00:01:49 perf bench sched messaging -l 1000000 -g 1
root 450 425 16 09:11 pts/0 00:01:50 perf bench sched messaging -l 1000000 -g 1
root 451 425 16 09:11 pts/0 00:01:50 perf bench sched messaging -l 1000000 -g 1
root 452 425 16 09:11 pts/0 00:01:50 perf bench sched messaging -l 1000000 -g 1
root 453 425 16 09:11 pts/0 00:01:49 perf bench sched messaging -l 1000000 -g 1
root 454 425 16 09:11 pts/0 00:01:49 perf bench sched messaging -l 1000000 -g 1
<SNIP>
Capture signals SIGINT and SIGTERM to kill child processes in signal handler
Yang Jihong (4):
perf bench messaging: Fix coding style issues for sched-messaging
perf bench messaging: Factor out create_worker()
perf bench messaging: Store chlid process pid when creating worker for
process mode
perf bench messaging: Kill child processes when exit abnormally in
process mode
tools/perf/bench/sched-messaging.c | 102 ++++++++++++++++++-----------
1 file changed, 64 insertions(+), 38 deletions(-)
--
2.34.1
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