Avi Kivity wrote:
Anthony Liguori wrote:
dup()ing the fd on each request is unnecessary work; would be better
to cache the duped fd.
Yeah, I was concerned about this too. Ryan reran the fio benchmark and
the submission latency and completion latency were identical to the
linux-aio patches. That suggests that the overhead of dup() is lost in
the noise.
Since this is simpler and keeps the number of open file descriptors as
low as possible, I was happy about that.
Regards,
Anthony Liguori
Of course, if this is just a stepping stone, it doesn't matter very much.
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