Hi Guys,
At the performance meeting this week we discussed the possibility of
changing how newstore handles large partial overwrites. 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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