Re: [RFC PATCH v3 00/16] Core scheduling v3

From: Aubrey Li
Date: Fri Jul 19 2019 - 07:49:00 EST


On Fri, Jul 19, 2019 at 1:53 PM Aaron Lu <aaron.lu@xxxxxxxxxxxxxxxxx> wrote:
>
> On Thu, Jul 18, 2019 at 04:27:19PM -0700, Tim Chen wrote:
> >
> >
> > On 7/18/19 3:07 AM, Aaron Lu wrote:
> > > On Wed, Jun 19, 2019 at 02:33:02PM -0400, Julien Desfossez wrote:
> >
> > >
> > > With the below patch on top of v3 that makes use of util_avg to decide
> > > which task win, I can do all 8 steps and the final scores of the 2
> > > workloads are: 1796191 and 2199586. The score number are not close,
> > > suggesting some unfairness, but I can finish the test now...
> >
> > Aaron,
> >
> > Do you still see high variance in terms of workload throughput that
> > was a problem with the previous version?
>
> Any suggestion how to measure this?
> It's not clear how Aubrey did his test, will need to take a look at
> sysbench.
>

Well, thanks to post this at the end of my vacation, ;)
I'll go back to the office next week and give a shot.
I actually have a new setup of co-locating AVX512 tasks with
sysbench MYSQL. Both throughput and latency was unacceptable
on the top of V3, Looking forward to seeing the difference of
patch.

Thanks,
-Aubrey