Re: [PATCH 4/5] sched/isolation: Residual 1Hz scheduler tick offload
From: Christopher Lameter
Date: Tue Dec 19 2017 - 11:03:59 EST
On Tue, 19 Dec 2017, Frederic Weisbecker wrote:
> Adding the boot parameter "isolcpus=nohz_offload" will now outsource
> these scheduler ticks to the global workqueue so that a housekeeping CPU
> handles that tick remotely.
The vmstat processing required per cpu area access. How does that work if
the code is running on a remote processor?