Boris Derzhavets
2010-Oct-21 13:04 UTC
Re: [Xen-users] Re: [Fedora-xen] another xen build and pvops kernel
This one about pvops kernel 2.6.32.24 under Xen 4.0.1 on top of Ubuntu 10.10 Desktop http://bderzhavets.wordpress.com/2010/10/15/set-up-xen-4-0-1-libvirt-0-8-3-on-top-of-ubuntu-10-10-desktop/ Boris. --- On Thu, 10/21/10, Pasi Kärkkäinen <pasik@iki.fi> wrote: From: Pasi Kärkkäinen <pasik@iki.fi> Subject: Re: [Xen-users] Re: [Fedora-xen] another xen build and pvops kernel To: "Boris Derzhavets" <bderzhavets@yahoo.com> Cc: xen-users@lists.xensource.com Date: Thursday, October 21, 2010, 8:40 AM 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@iki.fi> wrote: > > From: Pasi Kärkkäinen <pasik@iki.fi> > Subject: Re: [Xen-users] Re: [Fedora-xen] another xen build and pvops kernel > To: "Boris Derzhavets" <bderzhavets@yahoo.com> > Cc: xen-users@lists.xensource.com > 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@yahoo.com> wrote: > > > > From: Boris Derzhavets <[3]bderzhavets@yahoo.com> > > Subject: [Xen-users] Re: [Fedora-xen] another xen build and pvops kernel > > To: "Pasi Kärkkäinen" <[4]pasik@iki.fi> > > Cc: [5]xen@lists.fedoraproject.org, [6]xen-users@lists.xensource.com > > 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@iki.fi> wrote: > > > > From: Pasi Kärkkäinen <[8]pasik@iki.fi> > > Subject: Re: [Fedora-xen] another xen build and pvops kernel > > To: "Boris Derzhavets" <[9]bderzhavets@yahoo.com> > > Cc: [10]xen@lists.fedoraproject.org, [11]xen-users@lists.xensource.com > > 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@durham.ac.uk> wrote: > > > > > > From: M A Young <[13]m.a.young@durham.ac.uk> > > > Subject: Re: [Fedora-xen] another xen build > > > To: [14]xen@lists.fedoraproject.org > > > 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@lists.fedoraproject.org > > > [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@lists.fedoraproject.org > > > 3. [3][19]https://admin.fedoraproject.org/mailman/listinfo/xen > > > > > -- > > > xen mailing list > > > [20]xen@lists.fedoraproject.org > > > [4][21]https://admin.fedoraproject.org/mailman/listinfo/xen > > > > -----Inline Attachment Follows----- > > > > _______________________________________________ > > Xen-users mailing list > > [5][22]Xen-users@lists.xensource.com > > [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@lists.xensource.com > > 6. [29]http://lists.xensource.com/xen-users > > _______________________________________________ > Xen-users mailing list > [30]Xen-users@lists.xensource.com > [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@yahoo.com > 3. file:///mc/compose?to=bderzhavets@yahoo.com > 4. file:///mc/compose?to=pasik@iki.fi > 5. file:///mc/compose?to=xen@lists.fedoraproject.org > 6. file:///mc/compose?to=xen-users@lists.xensource.com > 7. file:///mc/compose?to=pasik@iki.fi > 8. file:///mc/compose?to=pasik@iki.fi > 9. file:///mc/compose?to=bderzhavets@yahoo.com > 10. file:///mc/compose?to=xen@lists.fedoraproject.org > 11. file:///mc/compose?to=xen-users@lists.xensource.com > 12. file:///mc/compose?to=m.a.young@durham.ac.uk > 13. file:///mc/compose?to=m.a.young@durham.ac.uk > 14. file:///mc/compose?to=xen@lists.fedoraproject.org > 15. file:///mc/compose?to=xen@lists.fedoraproject.org > 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@lists.fedoraproject.org > 19. https://admin.fedoraproject.org/mailman/listinfo/xen > 20. file:///mc/compose?to=xen@lists.fedoraproject.org > 21. https://admin.fedoraproject.org/mailman/listinfo/xen > 22. file:///mc/compose?to=Xen-users@lists.xensource.com > 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@lists.xensource.com > 29. http://lists.xensource.com/xen-users > 30. file:///mc/compose?to=Xen-users@lists.xensource.com > 31. http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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