Re: IO scheduler based IO controller V10

From: Jens Axboe
Date: Fri Oct 02 2009 - 15:09:43 EST


On Fri, Oct 02 2009, Ingo Molnar wrote:
>
> * Jens Axboe <jens.axboe@xxxxxxxxxx> wrote:
>
> > On Fri, Oct 02 2009, Theodore Tso wrote:
> > > On Fri, Oct 02, 2009 at 08:04:37PM +0200, Jens Axboe wrote:
> > > > > i'd say 'latency' describes it even better. 'interactivity' as a term is
> > > > > a bit overladen.
> > > >
> > > > I'm not too crazy about it either. How about just using 'desktop'
> > > > since this is obviously what we are really targetting? 'latency'
> > > > isn't fully descriptive either, since it may not necessarily
> > > > provide the best single IO latency (noop would).
> > >
> > > As Linus has already pointed out, it's not necessarily "desktop"
> > > versus "server". There will be certain high frequency transaction
> > > database workloads (for example) that will very much care about
> > > latency. I think "low_latency" may be the best term to use.
> >
> > Not necessarily, but typically it will be. As already noted, I don't
> > think latency itself is a very descriptive term for this.
>
> Why not? Nobody will think of 'latency' as something that requires noop,
> but as something that in practice achieves low latencies, for stuff that
> people use.

Alright, I'll acknowledge that if that's the general consensus. I may be
somewhat biased myself.

--
Jens Axboe

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