On Thu, Oct 21, 2010 at 05:39:10AM -0700, Boris Derzhavets wrote:
> Sorry, it's about only XenLinux config and setup . Nothing about pvops.
>
I
meant for the performance comparison/benchmark you need to pay
attention to *pvops* configuration.
-- Pasi
> Boris.
>
> --- On Thu, 10/21/10, Pasi Kärkkäinen <
pasik@xxxxxx> wrote:
>
> From: Pasi Kärkkäinen <
pasik@xxxxxx>
> Subject: Re: [Xen-users] Re: [Fedora-xen] another xen build and pvops kernel
> To: "Boris Derzhavets" <
bderzhavets@xxxxxxxxx>
> Cc:
xen-users@xxxxxxxxxxxxxxxxxxx> Date: Thursday, October 21, 2010, 8:25 AM
>
> On Thu, Oct 21, 2010 at 04:40:52AM -0700, Boris Derzhavets wrote:
> > Actually, i would be glad to be wrong about performance numbers.
> > Following bellow is how i set up 2.6.34.7 as bzImage under Xen 4.0.1
> > on top of Ubuntu 10.10 ( Server or Desktop).
> >
> >
> [1]
http://bderzhavets.wordpress.com/2010/10/17/xenlinux-kernel-2-6-34-7-aka-suse-under-xen-4-0-1-on-top-of-ubuntu-10-10-desktop/> >
>
> It's more about your *pvops* config, not xenlinux config.
>
> -- Pasi
>
> >
Boris.
> >
> > --- On Thu, 10/21/10, Boris Derzhavets <[2]
bderzhavets@xxxxxxxxx> wrote:
> >
> > From: Boris Derzhavets <[3]
bderzhavets@xxxxxxxxx>
> > Subject: [Xen-users] Re: [Fedora-xen] another xen build and pvops kernel
> > To: "Pasi Kärkkäinen" <[4]
pasik@xxxxxx>
> > Cc: [5]
xen@xxxxxxxxxxxxxxxxxxxxxxx, [6]
xen-users@xxxxxxxxxxxxxxxxxxx> > Date: Thursday, October 21, 2010, 1:49 AM
> >
> > > - How did you measure this performance difference?
> > Database server running on PV DomU with intensive I/O.
> > Workload connected with loading and unloading tables
> > to/from ASCII files residing on the guest's image.
> > > - Did you make sure kernel configuration is similar for both kernel types?
> > > Many pvops .configs have various debugging options enabled that kill the
performance..
> >
> > It's my personal impression. I am not an expert in PVOPS config tuning, but
> > try to avoid debugging options.
> >
> > Boris.
> >
> > --- On Wed, 10/20/10, Pasi Kärkkäinen <[7]
pasik@xxxxxx> wrote:
> >
> > From: Pasi Kärkkäinen <[8]
pasik@xxxxxx>
> > Subject: Re: [Fedora-xen] another xen build and pvops kernel
> > To: "Boris Derzhavets" <[9]
bderzhavets@xxxxxxxxx>
> > Cc: [10]
xen@xxxxxxxxxxxxxxxxxxxxxxx, [11]
xen-users@xxxxxxxxxxxxxxxxxxx> > Date: Wednesday, October 20, 2010, 1:42 PM
> >
> > On Mon, Oct 18, 2010 at 07:49:29AM -0700, Boris Derzhavets wrote:
> > > Just wondering why [1]kernel-2.6.32.23-170.xendom0.fc12.src.rpm cannot
> > > make itself
> >
> into F14. It seems pretty stable. Why it cannot be just a package
> > > available via "yum install" . Anyway Fedora's Libvirt has the best
> > > compatibility with Xen 4.0.1.
> > > It's not too late switch back to Xen with PVOPS kernel. XenLinux 2.6.34.7
> > > aka Suse
> > > is really dangerous . It outperforms pvops kernel about 15-20 % under Xen
> > > 4.0.1.
> > >
> >
> > - How did you measure this
performance difference?
> > - Did you make sure kernel configuration is similar for both kernel types?
> > Many pvops .configs have various debugging options enabled that kill the performance..
> >
> > -- Pasi
> >
> > > I don't mention KVM performance. It's not a competitor for OpenSuse 11.3
> > > after the
> > > most recent "zypper update"
> > >
> > > Boris.
> >
>
> > > --- On Mon, 10/18/10, M A Young <[12]
m.a.young@xxxxxxxxxxxx> wrote:
> > >
> > > From: M A Young <[13]
m.a.young@xxxxxxxxxxxx>
> > > Subject: Re: [Fedora-xen] another xen build
> > > To: [14]
xen@xxxxxxxxxxxxxxxxxxxxxxx> > > Date:
Monday, October 18, 2010, 6:17 AM
> > >
> > > There is less urgency to test now because 4.0.1-6.fc14 has now made it
> > > into F14 in time for the release. You can of course continue to test if
> > > you want to.
> > >
> > > Michael Young
> > > --
> > > xen mailing list
> > > [2][15]
xen@xxxxxxxxxxxxxxxxxxxxxxx> > > [3][1][16]
https://admin.fedoraproject.org/mailman/listinfo/xen> > >
> > > References
> > >
> > > Visible links
> > > 1. [2][17]
http://fedorapeople.org/%7Emyoung/dom0/src/kernel-2.6.32.23-170.xendom0.fc12.src.rpm> > > 2. file:///mc/compose?to=[18]
xen@xxxxxxxxxxxxxxxxxxxxxxx> > > 3. [3][19]
https://admin.fedoraproject.org/mailman/listinfo/xen> >
> > > --
> > > xen mailing list
> > > [20]
xen@xxxxxxxxxxxxxxxxxxxxxxx> > > [4][21]
https://admin.fedoraproject.org/mailman/listinfo/xen> >
> > -----Inline Attachment Follows-----
> >
> > _______________________________________________
> > Xen-users mailing list
> > [5][22]
Xen-users@xxxxxxxxxxxxxxxxxxx> > [6][23]
http://lists.xensource.com/xen-users> >
> > References
> >
> > Visible links
> > 1. [24]
https://admin.fedoraproject.org/mailman/listinfo/xen> > 2. [25]
http://fedorapeople.org/%7Emyoung/dom0/src/kernel-2.6.32.23-170.xendom0.fc12.src.rpm> > 3. [26]
https://admin.fedoraproject.org/mailman/listinfo/xen> > 4. [27]
https://admin.fedoraproject.org/mailman/listinfo/xen> > 5. file:///mc/compose?to=[28]
Xen-users@xxxxxxxxxxxxxxxxxxx> > 6. [29]
http://lists.xensource.com/xen-users>
> _______________________________________________
> Xen-users mailing list
> [30]
Xen-users@xxxxxxxxxxxxxxxxxxx> [31]
http://lists.xensource.com/xen-users>
> References
>
> Visible links
> 1.
http://bderzhavets.wordpress.com/2010/10/17/xenlinux-kernel-2-6-34-7-aka-suse-under-xen-4-0-1-on-top-of-ubuntu-10-10-desktop/> 2. file:///mc/compose?to=
bderzhavets@xxxxxxxxx> 3. file:///mc/compose?to=
bderzhavets@xxxxxxxxx> 4. file:///mc/compose?to=
pasik@xxxxxx> 5. file:///mc/compose?to=
xen@xxxxxxxxxxxxxxxxxxxxxxx> 6. file:///mc/compose?to=
xen-users@xxxxxxxxxxxxxxxxxxx>
7. file:///mc/compose?to=
pasik@xxxxxx> 8. file:///mc/compose?to=
pasik@xxxxxx> 9. file:///mc/compose?to=
bderzhavets@xxxxxxxxx> 10. file:///mc/compose?to=
xen@xxxxxxxxxxxxxxxxxxxxxxx> 11. file:///mc/compose?to=
xen-users@xxxxxxxxxxxxxxxxxxx> 12. file:///mc/compose?to=
m.a.young@xxxxxxxxxxxx> 13. file:///mc/compose?to=
m.a.young@xxxxxxxxxxxx> 14. file:///mc/compose?to=
xen@xxxxxxxxxxxxxxxxxxxxxxx> 15. file:///mc/compose?to=
xen@xxxxxxxxxxxxxxxxxxxxxxx> 16.
https://admin.fedoraproject.org/mailman/listinfo/xen> 17.
http://fedorapeople.org/%7Emyoung/dom0/src/kernel-2.6.32.23-170.xendom0.fc12.src.rpm> 18. file:///mc/compose?to=
xen@xxxxxxxxxxxxxxxxxxxxxxx> 19.
https://admin.fedoraproject.org/mailman/listinfo/xen> 20. file:///mc/compose?to=
xen@xxxxxxxxxxxxxxxxxxxxxxx> 21.
https://admin.fedoraproject.org/mailman/listinfo/xen> 22. file:///mc/compose?to=
Xen-users@xxxxxxxxxxxxxxxxxxx> 23.
http://lists.xensource.com/xen-users> 24.
https://admin.fedoraproject.org/mailman/listinfo/xen> 25.
http://fedorapeople.org/%7Emyoung/dom0/src/kernel-2.6.32.23-170.xendom0.fc12.src.rpm> 26.
https://admin.fedoraproject.org/mailman/listinfo/xen> 27.
https://admin.fedoraproject.org/mailman/listinfo/xen> 28. file:///mc/compose?to=
Xen-users@xxxxxxxxxxxxxxxxxxx> 29.
http://lists.xensource.com/xen-users> 30. file:///mc/compose?to=
Xen-users@xxxxxxxxxxxxxxxxxxx> 31.
http://lists.xensource.com/xen-users
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