From: Tejun Heo <tj@kernel.org>
To: Huaixin Chang <changhuaixin@linux.alibaba.com>
Cc: bsegall@google.com, dietmar.eggemann@arm.com,
dtcccc@linux.alibaba.com, juri.lelli@redhat.com,
khlebnikov@yandex-team.ru, linux-kernel@vger.kernel.org,
mgorman@suse.de, mingo@redhat.com, odin@uged.al, odin@ugedal.com,
pauld@redhead.com, peterz@infradead.org, pjt@google.com,
rostedt@goodmis.org, shanpeic@linux.alibaba.com,
vincent.guittot@linaro.org, xiyou.wangcong@gmail.com
Subject: Re: [PATCH v5 2/3] sched/fair: Add cfs bandwidth burst statistics
Date: Thu, 20 May 2021 13:06:34 -0400 [thread overview]
Message-ID: <YKaXGpMIjJTwF9Ce@slm.duckdns.org> (raw)
In-Reply-To: <20210520123419.8039-3-changhuaixin@linux.alibaba.com>
On Thu, May 20, 2021 at 08:34:18PM +0800, Huaixin Chang wrote:
> When using cfs_b and meeting with some throttled periods, users shall
> use burst buffer to allow bursty workloads. Apart from configuring some
> burst buffer and watch whether throttled periods disappears, some
> statistics on burst buffer using are also helpful. Thus expose the
> following statistics into cpu.stat file:
>
> nr_burst: number of periods bandwidth burst occurs
nr_bursts
> burst_time: cumulative wall-time that any cpus has
> used above quota in respective periods
burst_usec may be more in line with other fields in that file.
Thanks.
--
tejun
next prev parent reply other threads:[~2021-05-20 17:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-20 12:34 [PATCH v5 0/3] sched/fair: Burstable CFS bandwidth controller Huaixin Chang
2021-05-20 12:34 ` [PATCH v5 1/3] sched/fair: Introduce the burstable CFS controller Huaixin Chang
2021-05-20 14:00 ` Odin Ugedal
2021-05-20 17:04 ` Tejun Heo
2021-05-21 9:09 ` changhuaixin
2021-05-21 9:38 ` Odin Ugedal
2021-05-21 12:38 ` changhuaixin
2021-05-21 14:00 ` Peter Zijlstra
2021-05-24 12:42 ` changhuaixin
2021-05-25 10:46 ` Peter Zijlstra
2021-05-31 6:59 ` luca abeni
2021-05-25 10:47 ` Peter Zijlstra
2021-05-25 21:25 ` Benjamin Segall
2021-05-25 10:49 ` Peter Zijlstra
2021-05-20 12:34 ` [PATCH v5 2/3] sched/fair: Add cfs bandwidth burst statistics Huaixin Chang
2021-05-20 14:11 ` Odin Ugedal
2021-05-21 12:42 ` changhuaixin
2021-05-21 14:05 ` Peter Zijlstra
2021-05-20 17:06 ` Tejun Heo [this message]
2021-05-21 14:01 ` Peter Zijlstra
2021-05-20 12:34 ` [PATCH v5 3/3] sched/fair: Add document for burstable CFS bandwidth Huaixin Chang
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