Re: [PATCH OSSTEST 2/2] make-flight: add a core scheduling job

[Dario Faggioli <dfaggioli@xxxxxxxx>]

On Thu, 2020-04-16 at 18:36 +0200, Roger Pau Monné wrote:
> On Thu, Apr 16, 2020 at 06:28:33PM +0200, Dario Faggioli wrote:
> > On Wed, 2020-04-15 at 14:06 +0100, Ian Jackson wrote:
> > > 
> > > This seems fine as far as it goes, but all it does is check that
> > > things still work if sched-gran=core is passed. 
> > > 
> > Yep, and that's enough for enabling and starting using ore-
> > scheduling.
> > So, doing like this, core-scheduling should get the same amount and
> > kind of testing that scheduling in general gets.
> 
> Well, we run a lot more tests without 'sched-gran=core', but I don't
> think it's feasible to duplicate the matrix to run all tests with and
> without core-scheduling.
> 
Sure, but again, that's the kind of scheduling testing that we do.
E.g., right now that Credit2 is the default scheduler, we still test
the other schedulers, exactly with "just" a job like this (AFAICR, at
least).

It indeed would be good to have something more specific, not only for
core-scheduling, but for scheduling in general. But it's not there
right now... That was the point. :-)

Of course the default setup (which, currently, has "sched-gran=cpu") is
stressed much more, because all the other jobs also use it, but indeed
it does not appear sensible to replicate the matrix for each job that
we have with a non-default configuration.

> > One question, as my OSSTest-fu is a bit rusty... does this create
> > "sched-gran=core" tests for all the schedulers? Or just one of them
> > for
> > th default scheduler?
> 
> Just for the default scheduler ATM, we can expand this if required.
>
Ok, sure. Maybe it would make sense to add just another one for Credit,
sooner rather than later, as I guess there may be people wanting to
continue use Credit, but they may want to try it with core-scheduling.

Of course, this can be done on top of this patch... I was just thinking
out loud here. :-)

Thanks and Regards
-- 
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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