From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Chiluk <chiluk+linux@indeed.com>
Subject: [PATCH v5 0/1] sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices
Date: Thu, 27 Jun 2019 14:49:29 -0500
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To: Ben Segall <bsegall@google.com>, Pqhil Auld <pauld@redhat.com>, Peter Oskolkov <posk@posk.io>, Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, Brendan Gregg <bgregg@netflix.com>, Kyle Anderson <kwa@yelp.com>, Gabriel Munos <gmunoz@netflix.com>, John Hammond <jhammond@indeed.com>, Cong Wang <xiyou.wangcong@gmail.com>, Jonathan Corbet <corbet@lwn.net>, linux-doc@vger.kernel.org

Changelog v5
- Based on this comment from Ben Segall's comment on v4
> If the cost of taking this global lock across all cpus without a
> ratelimit was somehow not a problem, I'd much prefer to just set
> min_cfs_rq_runtime = 0. (Assuming it is, I definitely prefer the "lie
> and sorta have 2x period 2x runtime" solution of removing expiration)
I'm resubmitting my v3 patchset, with the requested changes.
- Updated Commit log given review comments
- Update sched-bwc.txt give my new understanding of the slack timer.

Changelog v4
- Rewrote patchset around the concept of returning all of runtime_remaining
when cfs_b nears the end of available quota.

Changelog v3
- Reworked documentation to better describe behavior of slice expiration per
feedback from Peter Oskolkov

Changelog v2
- Fixed some checkpatch errors in the commit message.