Maybe one last question (sorry ;) Do you have tried to launch 2 fio test from 2 differents kvm host at the same time ?
If yes, do you have more io or do you have half of speed on each fio test ? ----- Mail original ----- De: "Alexandre DERUMIER" <[email protected]> À: "Stefan Priebe - Profihost AG" <[email protected]> Cc: [email protected] Envoyé: Vendredi 9 Novembre 2012 15:43:47 Objet: Re: [pve-devel] less cores more iops / speed >>To me yes. With 3 Nodes i had a max of 10.000 iops. Ah, great to known ! so around 3000 iops by node, I hope It'll improve in time. Did you have tested with gigabit link with bigger latencies ? ----- Mail original ----- De: "Stefan Priebe - Profihost AG" <[email protected]> À: "Alexandre DERUMIER" <[email protected]> Cc: [email protected], "Dietmar Maurer" <[email protected]> Envoyé: Vendredi 9 Novembre 2012 15:28:12 Objet: Re: [pve-devel] less cores more iops / speed Am 09.11.2012 11:31, schrieb Alexandre DERUMIER: >>> Yes. CPU Load in Ceph for rand. 4k writes can be dropped by 50% when >>> disabling all debug setting (see my last post on ceph mailinglist). > > I just see it, great,I'll test it on my side :) > > (how many ssds - nodes ?) I hope that Intank is working on random io > performance. I have 5 nodes with 4 SSDs each. > I don't understand why we can't get more iops, if they are no cpu or disks > bottleneck... (or they are locks somewhere ....) > > I really would like to known if iops scale with the number of nodes... To me yes. With 3 Nodes i had a max of 10.000 iops. Stefan _______________________________________________ pve-devel mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel _______________________________________________ pve-devel mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
