Jens Axboe 8ac9b0d33e io_uring/sqpoll: switch away from getrusage() for CPU accounting ...

getrusage() does a lot more than what the SQPOLL accounting needs, the
latter only cares about (and uses) the stime. Rather than do a full
RUSAGE_SELF summation, just query the used stime instead.

Cc: stable@vger.kernel.org
Fixes: 3fcb9d1720 ("io_uring/sqpoll: statistics of the true utilization of sq threads")
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2025-10-22 10:51:20 -06:00

6.7 KiB

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