On 10/30/2017 12:33 PM, Sagi Grimberg wrote:
I agree we should fix this, nevertheless I don't expect this to
create an IO rate issue for long queue depths.
Indeed we will have a tradeoff here of latency vs rate.
I suggest we hold back with this one for now, I have fixes for
the local invalidate flow. Once we get them in we can see if
this approach makes a difference, and if so, we need to expose
it through a generic mechanism.
I suggest that you'll post the patches to the list and we'll investigate
the latency implications, if the implications are negligible, we have a
win here for small IOs.
When will you be able to post your patches?
I can post them now, but I prefer to test them first ;)
Sounds good, we will check once you'll post them.
I expect no impact on IOPs, just latency.
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