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Sender: Tejun Heo <htejun@gmail.com>
Date:   Thu, 20 May 2021 13:06:34 -0400
From:   Tejun Heo <tj@kernel.org>
To:     Huaixin Chang <changhuaixin@linux.alibaba.com>
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Subject: Re: [PATCH v5 2/3] sched/fair: Add cfs bandwidth burst statistics
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References: <20210520123419.8039-1-changhuaixin@linux.alibaba.com>
 <20210520123419.8039-3-changhuaixin@linux.alibaba.com>
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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