Re: [PATCH v4 10/10] sched/fair: Provide idle search schedstats

[Steven Sistare]

On 12/24/2018 7:25 AM, Rick Lindsley wrote:
> On 12/06/2018 01:28 PM, Steve Sistare wrote:
>> Add schedstats to measure the effectiveness of searching for idle CPUs
>> and stealing tasks. This is a temporary patch intended for use during
>> development only. SCHEDSTAT_VERSION is bumped to 16, and the following
>> fields are added to the per-CPU statistics of /proc/schedstat:
> 
> Why only temporary? It would seem that this might be useful information in the future too, for other developers with either new code or new use cases.
> 
> Rick

Yes, they could be useful.  I suspect it would take a while to reach consensus
on new field definition, and whether their usefulness outweighs the downside
of breaking out of tree tools that assume version 15.

- Steve