Groups > linux.kernel > #1641984

[PATCH RESEND 0/1] sched/rt: minimize rq->lock contention in, do_sched_rt_period_timer()

From	Dave Kleikamp <dave.kleikamp@oracle.com>
Newsgroups	linux.kernel
Subject	[PATCH RESEND 0/1] sched/rt: minimize rq->lock contention in, do_sched_rt_period_timer()
Date	2017-05-15 21:20 +0200
Message-ID	<tHtHc-3KQ-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Peter, Ingo,

I sent this patch about a month ago and got no response.

https://patchwork.kernel.org/patch/9684545/

Does it seem reasonable? I'm not sure if taking rt_runtime_lock is
strictly necessary, but it's a big improvement to taking rq->lock every
pass through the loop. Is there another way to fix this?

Thanks,
Shaggy

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[PATCH RESEND 0/1] sched/rt: minimize rq->lock contention in,  do_sched_rt_period_timer() Dave Kleikamp <dave.kleikamp@oracle.com> - 2017-05-15 21:20 +0200
  [PATCH RESEND 1/1] sched/rt: minimize rq->lock contention in,  do_sched_rt_period_timer() Dave Kleikamp <dave.kleikamp@oracle.com> - 2017-05-15 21:20 +0200
    Re: [PATCH RESEND 1/1] sched/rt: minimize rq->lock contention in,  do_sched_rt_period_timer() Peter Zijlstra <peterz@infradead.org> - 2017-05-16 10:20 +0200
    [tip:sched/core] sched/rt: Minimize rq->lock contention in  do_sched_rt_period_timer() tip-bot for Dave Kleikamp <tipbot@zytor.com> - 2017-05-23 11:00 +0200

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