Re: Switching to MQ by default may generate some bug reports

Mel Gorman
2017-08-03T10:47:04Z

On Thu, Aug 03, 2017 at 11:44:06AM +0200, Paolo Valente wrote:
> > That series is dealing with problems with legacy-deadline vs mq-none where
> > as the bulk of the problems reported in this mail are related to
> > legacy-CFQ vs mq-BFQ.
> >
>
> Out-of-curiosity: you get no regression with mq-none or mq-deadline?
>

I didn't test mq-none as the underlying storage was not fast enough to
make a legacy-noop vs mq-none meaningful. legacy-deadline vs mq-deadline
did show small regressions on some workloads but not as dramatic and
small enough that it would go unmissed in some cases.

--
Mel Gorman
SUSE Labs