I agree with Alex. Also, most of the kernel tunables proposed in that thread are also available in the tuned profiles provided by the redhat-storage-server source rpm available at ftp://ftp.redhat.com/redhat/linux/enterprise/7Server/en/RHS/SRPMS/
Usually the alignment of XFS ontop the HW raid is quite important and missed. Best Regards, Strahil Nikolov В сряда, 21 октомври 2020 г., 22:35:21 Гринуич+3, Alex McWhirter <[email protected]> написа: In my experience, the ovirt optimized defaults are fairly sane. I may change a few things like enabling read ahead or increasing the shard size, but these are minor performance bumps if anything. The most important thing is the underlying storage, RAID 10 is ideal performance wise, large stripe sizes are preferable for VM workloads, etc... You want the underlying storage to be as fast as possible, dedicated cache devices are a plus. IOPS and latency are often more important that throughput. Network throughput and latency are also very important. I don't think i would attempt a gluster setup on anything slower than 10GbE, jumbo frames are a huge help, switches with large buffers are nice as well. Do not L3 route gluster (at least not inter-server links) unless you have a switch that can do line rate routing. High or inconsistent network latency will bring gluster to it's knees. Kernel tuning / gluster volume options do help, but they are not groundbreaking performance improvements. Usually just little speed boosts here and there. On 2020-10-21 12:30, [email protected] wrote: > >> >> >> > > > > > > Here is the post link: > > https://lists.ovirt.org/archives/list/[email protected]/thread/I62VBDYPQIWPRE3LKUUVSLHPZJVQBT4X/ > > > > Here is the actual link: > > https://docs.gluster.org/en/latest/Administrator%20Guide/Linux%20Kernel%20Tuning/ > > > > > > > Eric Evans > > Digital Data Services LLC. > > 304.660.9080 > > > > > > > > > From: [email protected] <[email protected]> > Sent: Wednesday, October 21, 2020 11:47 AM > To: [email protected] > Cc: users <[email protected]> > Subject: Re: [ovirt-users] Improve glusterfs performance > > > > > > > > Thanks. > > > > This is what I found from you related to glusterfs: > https://lists.ovirt.org/archives/list/[email protected]/message/DN47OTYUUCOAFDD6QQC333AW5RBBN6SM/ > > > > > > > > But I don't find anything on how to imporve gluster. > > > > > > > > José > > > > > > > ________________________________ > > > De: [email protected]: [email protected], "users" > <[email protected]>Enviadas: Quarta-feira, 21 De Outubro de 2020 > 15:53:00Assunto: RE: [ovirt-users] Improve glusterfs performance > > > > > > > > > I posted a link in the users list that details how to improve gluster and > improve performance. Search gluster. > > > > > Eric Evans > > Digital Data Services LLC. > > 304.660.9080 > > > > > > > > > From: [email protected] <[email protected]> Sent: Wednesday, October > 21, 2020 9:42 AMTo: users <[email protected]>Subject: [ovirt-users] Improve > glusterfs performance > > > > > > > > Hello, > > > > > > > > Can anyone help me in how can I improve the performance of glusterfs to work > with oVirt? > > > > > > > > Thanks > > > > > > > > -- > > > > ________________________________ > > > Jose Ferradeirahttp://www.logicworks.pt > > > > > > > > > > > > > > > _______________________________________________ > Users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/[email protected]/message/EAWWGYZ4GUNHDBE23XBCOFUG56AZMFRU/ > _______________________________________________ Users mailing list -- [email protected] To unsubscribe send an email to [email protected] Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/[email protected]/message/LI6QSA4N3JPXXVXWUW73TYGYOJOUTF5C/ _______________________________________________ Users mailing list -- [email protected] To unsubscribe send an email to [email protected] Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/[email protected]/message/5H2XLC2GZV2QWGWTAHMYQMV3X4OCHOWC/
