Re: CEPH 16.2.x: disappointing I/O performance

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Den ons 6 okt. 2021 kl 06:37 skrev Zakhar Kirpichenko <zakhar@xxxxxxxxx>:
> Got it. I don't have any specific throttling set up for RBD-backed storage.
> I also previously tested several different backends and found that virtio
> consistently produced better performance than virtio-scsi in different
> scenarios, thus my VMs run virtio.

Then again, I think virtio-scsi is required for guests to be allowed
to run trim/discard, so if thin provisioning and getting space back is
important, virtio-scsi might be the better end result. Just a thought.

-- 
May the most significant bit of your life be positive.
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