Interesting. Who’s 10g cards and which offload settings did you disable? Did you do that on the servers or the vm host clients or both?
> On Apr 15, 2019, at 11:37 AM, Alex McWhirter <[email protected]> wrote: >> I went in and disabled TCP offload on all the nics, huge performance boost. >> went from 110MB/s to 240MB/s seq writes, reads lost a bit of performance >> going down to 680MB/s, but that's a decent trade off. Latency is still >> really high though, need to work on that. I think some more TCP tuning might >> help. >> >> > Those changes didn't do a whole lot, but i ended up enabling > performance.read-ahead on the gluster volume. my blockdev read ahead values > were already 8192, which seemed good enough. Not sure if ovirt set those, or > if it's just the defaults of my raid controller. > > Anyways up to 350MB/s writes, 700MB/s reads. Which so happens to correlate > with the saturation of my 10G network. Latency is still a slight issue, but > at least now im not blocking :) > > > _______________________________________________ > Users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/[email protected]/message/5COPHAIVCVK42KMMGWZQVMNGDH6Q32ZC/
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