Re: ceph-osd cpu usage

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Am 16.11.2012 09:41, schrieb Alexandre DERUMIER:
Any other ideas how to reduce ceph-osd while doing randwrite?

Randread gives me with 3 VMs: 60.000 iops
Randwrite gives me with 3 VMs: 25.000 iops

Great to see that read scale !
Yes that works fine.


For randwrite, what is the bottleneck now with filestore xattr use omap = true ?
Oh no the result was still with default fsetxattr. Filestore xattr use omap added another 20% load an resultet in much lower iops. Seems i wasn't clear enough about that.

Stefan
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