Re: Newstore Update Part 2

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On Fri, May 8, 2015 at 4:21 PM, Mark Nelson <mnelson@xxxxxxxxxx> wrote:
> Hi Guys,
>
> At the performance meeting this week we discussed the possibility of
> changing how newstore handles large partial overwrites.

Er, what was the potential change?

> To determine if
> this is useful, we look at rados bench and rbd performance of newstore at
> various IO sizes.  I've also included some rados bench read results as folks
> were interested in those.  On the graphs I've tried to mark interesting
> improvements/regressions and also some questions/comments. These tests were
> run without overlay which may help small IO performance in some cases.
>
> Graphs are here:
>
> http://nhm.ceph.com/newstore/8c8c5903_rbd_rados_tests.pdf
>
> Thanks,
> Mark
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