Hi, Google "enable rbd cache on KVM" - this is supposed to enable write back cache if client OS sends proper flush commands (i.e. linux kernel newer than 3.0) - will NOT help with reads, obviously...
For rest, there can be done some tunning, but expect no miracle. You didn't specify ceph cluster details, journals setup, etc - would be useful to know, then KVM host version, etc. Cheers On Fri, Aug 3, 2018, 16:05 Benjamin Naber <benjamin.na...@coders-area.de> wrote: > Hi @all, > > ive setup a Ceph Cluster in combination with KVM Hosts. If i benchmark > ceph rbd performance from Hypervisor itself i got 10 times higher > performance than from using a cloudstack created guest-vm. > are there any recommendet settings for KVM Hosts in cloudstack or KVM > using with ceph rbd ? > > kind regards > Ben >
