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Message-ID: <CAM9d7cg=k4sLLgA-EODxxRCg1EQjvWWaNOpm=VMRWokmqxiuew@mail.gmail.com>
Date: Wed, 27 Sep 2023 20:55:28 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Yang Jihong <yangjihong1@...wei.com>
Cc: peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
mark.rutland@....com, alexander.shishkin@...ux.intel.com,
jolsa@...nel.org, irogers@...gle.com, adrian.hunter@...el.com,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] perf bench messaging: Kill child processes when exit
abnormally in process mode
On Sat, Sep 23, 2023 at 2:32 AM Yang Jihong <yangjihong1@...wei.com> wrote:
>
> 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
Applied to perf-tools-next, thanks!
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