Hi,
> - client dom0: a simple quick debootstrap, and a low amount of memory to bypass buffers
I assume you meant domU ?
You ran those tests in a VM right ?
> Thx for the work you've put in this! Seems to work nicely at first glance, but I'll do some more tests later on (with a more recent ceph cluster)...
Thanks for testing. When you do more tests, it'd be interesting to
compare the kernel driver with the blktap driver.
I've actually identified a bottleneck caused the Xen IO ring splitting
large requests into small 44k chunks, which tends to lower RBD
performance a lot ... I'l still investigating possible solutions to
that.
Cheers,
Sylvain
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