Re: [PATCH v3 4/4] sched/fair: Add document for burstable CFS bandwidth control

[Peter Zijlstra]

On Thu, Jan 21, 2021 at 07:04:53PM +0800, Huaixin Chang wrote:
> Basic description of usage and effect for CFS Bandwidth Control Burst.
> 
> Signed-off-by: Huaixin Chang <changhuaixin@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Shanpei Chen <shanpeic@xxxxxxxxxxxxxxxxx>

Guess :-)

> +Sometimes users might want a group to burst without accumulation. This is
> +tunable via::
> +       /proc/sys/kernel/sched_cfs_bw_burst_onset_percent (default=0)
> +
> +Up to 100% runtime of cpu.cfs_burst_us might be given on setting bandwidth.

Sometimes is a very crap reason for code to exist. Also, everything is
in _us, why do we have this one thing as a percent?