On Okt 21 10:37, Jinhao Fan wrote:
> at 7:35 PM, Klaus Jensen <i...@irrelevant.dk> wrote:
>
> > Commit 2e53b0b45024 ("hw/nvme: Use ioeventfd to handle doorbell
> > updates") had the unintended effect of disabling batching of CQEs.
> >
> > This patch changes the sq/cq timers to bottom halfs and instead of
> > calling nvme_post_cqes() immediately (causing an interrupt per cqe), we
> > defer the call.
>
> This change is definitely desired.
>
> >
> > | iops
> > -----------------+------
> > baseline | 138k
> > +cqe batching | 233k
>
> What is the queue depth config for this test?
> That's 64. My box isnt nearly as beefy as yours ;)
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