On 08/17/2010 07:17 AM, Nikolai K. Bochev wrote:
Well i just tried this ( i never really did read the documents on that part ) and amazingly my loadavg on the kvm host dropped by a factor of 10. All the load was coming out of a heavily loaded VM with pgsql in it that was writing all the time ( zabbix monitoring etc. ). I guess this should really be set as default, not sure if it's up to virt-manager or libvirt.
This is precisely my point. With defaults the way they are right now, I suspect quite a few people will get the wrong impression of KVM's performance. I've even found a significant performance increase with file backed VMs by disabling caching.
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