Are we sure that the issue is the guest I/O - what's the raw performance on the host accessing the gluster storage?
----- Original Message ----- > From: "Steve Dainard" <sdain...@miovision.com> > To: "Itamar Heim" <ih...@redhat.com> > Cc: "Ronen Hod" <r...@redhat.com>, "users" <users@ovirt.org>, "Sanjay > Rao" <s...@redhat.com> > Sent: Thursday, January 23, 2014 4:56:58 PM > Subject: Re: [Users] Extremely poor disk access speeds in Windows > guest > I have two options, virtio and virtio-scsi. > I was using virtio, and have also attempted virtio-scsi on another > Windows guest with the same results. > Using the newest drivers, virtio-win-0.1-74.iso. > Steve Dainard > IT Infrastructure Manager > Miovision | Rethink Traffic > 519-513-2407 ex.250 > 877-646-8476 (toll-free) > Blog | LinkedIn | Twitter | Facebook > Miovision Technologies Inc. | 148 Manitou Drive, Suite 101, > Kitchener, ON, Canada | N2C 1L3 > This e-mail may contain information that is privileged or > confidential. If you are not the intended recipient, please delete > the e-mail and any attachments and notify us immediately. > On Thu, Jan 23, 2014 at 4:24 PM, Itamar Heim < ih...@redhat.com > > wrote: > > On 01/23/2014 07:46 PM, Steve Dainard wrote: > > > > Backing Storage: Gluster Replica > > > > > > Storage Domain: NFS > > > > > > Ovirt Hosts: CentOS 6.5 > > > > > > Ovirt version: 3.3.2 > > > > > > Network: GigE > > > > > > # of VM's: 3 - two Linux guests are idle, one Windows guest is > > > > > > installing updates. > > > > > > I've installed a Windows 2008 R2 guest with virtio disk, and all > > > the > > > > > > drivers from the latest virtio iso. I've also installed the spice > > > agent > > > > > > drivers. > > > > > > Guest disk access is horribly slow, Resource monitor during > > > Windows > > > > > > updates shows Disk peaking at 1MB/sec (scale never increases) and > > > Disk > > > > > > Queue Length Peaking at 5 and looks to be sitting at that level > > > 99% > > > of > > > > > > the time. 113 updates in Windows has been running solidly for > > > about > > > 2.5 > > > > > > hours and is at 89/113 updates complete. > > > > > virtio-block or virtio-scsi? > > > which windows guest driver version for that? > > > > I can't say my Linux guests are blisteringly fast, but updating a > > > guest > > > > > > from RHEL 6.3 fresh install to 6.5 took about 25 minutes. > > > > > > If anyone has any ideas, please let me know - I haven't found any > > > tuning > > > > > > docs for Windows guests that could explain this issue. > > > > > > Thanks, > > > > > > *Steve Dainard * > > > > > > ______________________________ _________________ > > > > > > Users mailing list > > > > > > Users@ovirt.org > > > > > > http://lists.ovirt.org/ mailman/listinfo/users > > > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users
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