Re: Context switch latency in tickless isolated CPU

From: Peter Zijlstra
Date: Fri Aug 19 2016 - 08:34:50 EST


On Thu, Aug 18, 2016 at 11:25:00AM +0800, GeHao Kang wrote:

> Is the increased time fixed in each context switch? Because this increased time
> will be the latency of the real time application, we hope to confirm it.
> Thanks.

Why are you wanting to use nohz_full if you do syscalls?