[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Question about VirtIO on Xen - Disk performance issues
The xenstore-ls output is not complete. Could you please send it again? I noticed from the DomU config file that it is not a Windows VM, as previously discussed, but a Linux VM. That is OK, but of course in that case you won't be able to use the Windows PV drivers which I linked. Linux has its own set of drivers. Did you enable the Xen PV frontends in the Linux kernel you use (/var/xen/boot/vmlinuz-4.0.5-gentoo_bmsbackup)? Did you compile them a built-in or as modules? On Tue, 5 Jan 2016, Luca Tongiani wrote: > Hi, > thanks in advance for your reply :) > > > I have attached the following email configuration DomU and the output you > have requested . > Performance disk are all my machines the most serious problem , even if they > are used powerful hardware . > Differences in Disk writing in DomU are 1/3 of those of the Dom0 . > > > Thank you in advance Luca > > > > > > > > Il 05/01/2016 12:09, Stefano Stabellini ha scritto: > > Could you please post your VM config file and the output of > xenstore-ls once the VM has completed the boot sequence? > > On Tue, 5 Jan 2016, Luca Tongiani wrote: > > Hi Stefano, > im writing to you because im having issue with I/O disk in my DomU With Xen > (Gentoo based system). > > I tried to use the driver that you provided for the PV . > But the results are still not good , there is no way to support the use of > Xen VirtIO disk ? Many thanks in > advance > > Luca > > Il 12/16/15 12:31, Stefano Stabellini ha scritto: > > Hello Luca, > > the recommended way to increase disk performance would be to use Xen PV > disks. You just need to install the Windows PV drivers: > > http://www.xenproject.org/developers/teams/windows-pv-drivers.html > > But using VirtIO disk should also increase performance, even though > most probably not as much. > > Cheers, > > Stefano > > On Tue, 15 Dec 2015, Luca Tongiani wrote: > > Hi to all, > I'm writing you this mail for asking some advice about a great problem i'm > havin in running a Windows VM > (HVM) onto a Xen (Gentoo based) Hypevisor. > > I need to achieve maximum performance from this VM because of intense SQL > tasks running in it. > > I've seen good improvement in IO on disk using VirtIO on a Windows VM onto a > QEMU (QNAP) hypervisor, and i'm > tryin to use this feature also on my Xen HV. > Is VirtIO disk a good way to improve performance? > > Thx in advance and hope to keep in touch > -- > > Luca Tongiani > > Sinte srl > Soluzioni Informatiche e Telematiche > via Monte Grappa 4/B > 20900 Monza (MB) > > Cel (+39) 339 745 49 21 > Tel (+39) 039 200 59 60 > Fax (+39) 039 200 69 42 > Web www.sinte.net > > > > > -- > > Luca Tongiani > > Sinte srl > Soluzioni Informatiche e Telematiche > via Monte Grappa 4/B > 20900 Monza (MB) > > Tel (+39) 039 200 59 60 > Fax (+39) 039 200 69 42 > Web www.sinte.net > > > > > -- > > Luca Tongiani > > Sinte srl > Soluzioni Informatiche e Telematiche > via Monte Grappa 4/B > 20900 Monza (MB) > > Tel (+39) 039 200 59 60 > Fax (+39) 039 200 69 42 > Web www.sinte.net > > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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