do you have tried fio with --numjobs option ? (I'll make more fio threads I think, maybe set it to the number of cpu you have)
----- Mail original ----- De: "Stefan Priebe - Profihost AG" <[email protected]> À: "Dietmar Maurer" <[email protected]> Cc: "Alexandre DERUMIER" <[email protected]>, [email protected] Envoyé: Vendredi 9 Novembre 2012 10:06:45 Objet: Re: [pve-devel] less cores more iops / speed I'm pinnin inside the kvm process the fio process. SO it shouldn't be a problem of librbd alone. Stefan Am 09.11.2012 09:59, schrieb Dietmar Maurer: >> Am 09.11.2012 09:50, schrieb Dietmar Maurer: >>>>> It's try to keep process on same numa node and I think it's also >>>>> doing some >>>> dynamic pinning. >>>> >>>> numad doesn't help but libvirt seems to support pinning of kvm instances. >>>> Maybe pve should support pinning too? >>> >>> So far I never had such problems. >>> >>> IMHO, Manual pinning is the wrong way. >> >> But doing heavy I/O with 8 Cores is much slower than with 2 Cores that can't >> be correct... > > What exactly is the suggestion? So far only rbd client shows such behavior? > _______________________________________________ pve-devel mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
