[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] iscsi vs nfs for xen VMs
On Sat, Jan 29, 2011 at 08:39:12PM +0100, Christian Zoffoli wrote: > Il 29/01/2011 19:53, Pasi Kärkkäinen ha scritto: > [cut] > > thanks for the links > > [cut] > >> Say, 12500 IOPS, will cause 1% cpu usage, when scaling linearly > >> from Intel+Microsoft results. > > I've seen many iSCSI implementations and noone gives me 12500 IOPS with > 1% cpu usage ...I would be happy to see a real setup with such performances. > Well, on windows you can get that. If we can't get that on Linux, we should optimize. Someone wants to run some benchmarks against ramdisk targets using Linux initiator? And yeah, to get 12500 IOPS from disk-based target you need to have a LOT of disks.. assuming single 7200 rpm sata disk can deliver around 100 random IOPS max, 12500 IOPS would require around 125 disks in raid-0. So for benchmarking initiator performance it's best to use ramdisk targets. > > Christian > > P.S. real means = something I could put in production without storing > VMs in memory Yep. -- Pasi _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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