On Tue, Aug 18, 2020 at 2:12 PM Ignat Korchagin <ignat@xxxxxxxxxxxxxx> wrote:
>
> Additionally if one cares about latency
I think everybody really deep down cares about latency, they just
don't always know it, and the benchmarks are very seldom about it
because it's so much harder to measure.
> they will not use HDDs for the workflow and HDDs have much higher IO latency than CPU scheduling.
I think by now we can just say that anybody who uses HDD's don't care
about performance as a primary issue.
I don't think they are really interesting as a benchmark target - at
least from the standpoint of what the kernel should optimize for.
People have HDD's for legacy reasons or because they care much more
about capacity than performance. Why should _we_ then worry about
performance that the user doesn't worry about?
I'm not saying we should penalize HDD's, but I don't think they are
things we should primarily care deeply about any more.
Linus
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