10:31 p.m.
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, eevans(a)digitaldatatechs.com wrote:
>
Here is the post link:
https://lists.ovirt.org/archives/list/users@ovirt.org/thread/I62VBDYPQIWP...
Here is the actual link:
https://docs.gluster.org/en/latest/Administrator%20Guide/Linux%20Kernel%2...
Eric Evans
Digital Data Services LLC.
304.660.9080
From: suporte(a)logicworks.pt <suporte(a)logicworks.pt>
Sent: Wednesday, October 21, 2020 11:47 AM
To: eevans(a)digitaldatatechs.com
Cc: users <users(a)ovirt.org>
Subject: Re: [ovirt-users] Improve glusterfs performance
Thanks.
This is what I found from you related to glusterfs:
https://lists.ovirt.org/archives/list/users@ovirt.org/message/DN47OTYUUCO...
But I don't find anything on how to imporve gluster.
José
-------------------------
De: eevans(a)digitaldatatechs.com
Para: suporte(a)logicworks.pt, "users" <users(a)ovirt.org>
Enviadas: Quarta-feira, 21 De Outubro de 2020 15:53:00
Assunto: 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: suporte(a)logicworks.pt <suporte(a)logicworks.pt>
Sent: Wednesday, October 21, 2020 9:42 AM
To: users <users(a)ovirt.org>
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 Ferradeira
http://www.logicworks.pt
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