I built a couple new servers on SLES11 because I needed to use USB. Since SLES11 has xen 3.4 packages that seemed like the way to go. I''m questioning the stability of the two new servers compared to my SLES10SP2 servers. I''m also questioning the performance of Windows domUs. On Thanksgiving day one of my SLES11 servers running 7-8 domUs crashed and restarted three times. Being Thanksgiving day I did not spend a lot of time on it and the quickest fix at the time was moving the domUs to another server, which I did. I''ve been running a memory test on that server since yesterday. So far no errors. Since bringing up Windows domUs on SLES11 I''ve noticed they seem slightly sluggish compared to the same domU on SLES10SP2. Is there a test I can do to compare the performance? Anyone else running SLES11 that has noticed any of these types of issues? Thanks, James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Pasi Kärkkäinen
2009-Dec-01 17:08 UTC
Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)
On Tue, Dec 01, 2009 at 08:35:34AM -0500, James Pifer wrote:> I built a couple new servers on SLES11 because I needed to use USB. > Since SLES11 has xen 3.4 packages that seemed like the way to go. I''m > questioning the stability of the two new servers compared to my > SLES10SP2 servers. I''m also questioning the performance of Windows > domUs. > > On Thanksgiving day one of my SLES11 servers running 7-8 domUs crashed > and restarted three times. Being Thanksgiving day I did not spend a lot > of time on it and the quickest fix at the time was moving the domUs to > another server, which I did. >You should setup (and have) a serial console logging what''s happening.. then you could just check the serial console log for errors/tracebacks/crash information. That''s the best way to track it down and get if fixed.> I''ve been running a memory test on that server since yesterday. So far > no errors. > > Since bringing up Windows domUs on SLES11 I''ve noticed they seem > slightly sluggish compared to the same domU on SLES10SP2. Is there a > test I can do to compare the performance? > > Anyone else running SLES11 that has noticed any of these types of > issues? >Are you using GPLPV drivers in the Windows guest? Or Novell''s Windows PV drivers? -- Pasi _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Joseph Coleman
2009-Dec-01 19:10 UTC
Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)
James, You will also want to look at the memory allocation I had the same problem until I adjusted how the memory was being allocated out per Novell''s recommendation. Below is a link to the document. Basically your specifying the ram form DomO and turning off memory ballooning. http://www.novell.com/support/php/search.do?cmd=displayKC&docType=kc&externa lId=3559698&sliceId=&docTypeID=DT_TID_1_1 Joe On 12/1/09 12:23 PM, "xen-users-request@lists.xensource.com" <xen-users-request@lists.xensource.com> wrote:> Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James Pifer
2009-Dec-01 20:36 UTC
Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)
On Tue, 2009-12-01 at 19:08 +0200, Pasi Kärkkäinen wrote:> On Tue, Dec 01, 2009 at 08:35:34AM -0500, James Pifer wrote: > > I built a couple new servers on SLES11 because I needed to use USB. > > Since SLES11 has xen 3.4 packages that seemed like the way to go. I''m > > questioning the stability of the two new servers compared to my > > SLES10SP2 servers. I''m also questioning the performance of Windows > > domUs. > > > > On Thanksgiving day one of my SLES11 servers running 7-8 domUs crashed > > and restarted three times. Being Thanksgiving day I did not spend a lot > > of time on it and the quickest fix at the time was moving the domUs to > > another server, which I did. > > > > You should setup (and have) a serial console logging what''s happening.. > then you could just check the serial console log for > errors/tracebacks/crash information. > > That''s the best way to track it down and get if fixed. > > > I''ve been running a memory test on that server since yesterday. So far > > no errors. > > > > Since bringing up Windows domUs on SLES11 I''ve noticed they seem > > slightly sluggish compared to the same domU on SLES10SP2. Is there a > > test I can do to compare the performance? > > > > Anyone else running SLES11 that has noticed any of these types of > > issues? > > > > Are you using GPLPV drivers in the Windows guest? Or Novell''s Windows PV > drivers? > > -- PasiThanks for the response. I had to change one of these servers back to sles10sp2 as we were trying to use one of the domUs and it kept crashing. The end of the log for the domU gives: platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state. platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state. xc_map_foreign_batch: mmap failed: Cannot allocate memory xc_map_foreign_batch error 12 Not sure what this means. The host server has 32 gb of RAM and there were only half a dozen domUs running, with only about 5gb of ram assigned. It''s now running on sles10sp2 dom0 without a problem. I guess it will be a while before we go with sles11. Thanks, James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James Pifer
2009-Dec-01 20:38 UTC
Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)
On Tue, 2009-12-01 at 13:10 -0600, Joseph Coleman wrote:> James, > > You will also want to look at the memory allocation I had the same problem > until I adjusted how the memory was being allocated out per Novell''s > recommendation. Below is a link to the document. Basically your specifying > the ram form DomO and turning off memory ballooning. > > http://www.novell.com/support/php/search.do?cmd=displayKC&docType=kc&externa > lId=3559698&sliceId=&docTypeID=DT_TID_1_1 > > Joe > > On 12/1/09 12:23 PM, "xen-users-request@lists.xensource.com" > <xen-users-request@lists.xensource.com> wrote: > > > Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)I''ll check this. I am specifying memory for domO, but I was not disabling ballooning. I still have one sles11 server, so I will try it on that one. Thanks, James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James Pifer
2009-Dec-01 21:40 UTC
Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)
On Tue, 2009-12-01 at 13:10 -0600, Joseph Coleman wrote:> James, > > You will also want to look at the memory allocation I had the same problem > until I adjusted how the memory was being allocated out per Novell''s > recommendation. Below is a link to the document. Basically your specifying > the ram form DomO and turning off memory ballooning. > > http://www.novell.com/support/php/search.do?cmd=displayKC&docType=kc&externa > lId=3559698&sliceId=&docTypeID=DT_TID_1_1 > > Joe > > On 12/1/09 12:23 PM, "xen-users-request@lists.xensource.com" > <xen-users-request@lists.xensource.com> wrote: > > > Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x) >Joe, Have you had any issues with the display going funky when you change the resolution in a windows domU? Thanks, James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Pasi Kärkkäinen
2009-Dec-01 21:54 UTC
Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)
On Tue, Dec 01, 2009 at 03:36:30PM -0500, James Pifer wrote:> On Tue, 2009-12-01 at 19:08 +0200, Pasi Kärkkäinen wrote: > > On Tue, Dec 01, 2009 at 08:35:34AM -0500, James Pifer wrote: > > > I built a couple new servers on SLES11 because I needed to use USB. > > > Since SLES11 has xen 3.4 packages that seemed like the way to go. I''m > > > questioning the stability of the two new servers compared to my > > > SLES10SP2 servers. I''m also questioning the performance of Windows > > > domUs. > > > > > > On Thanksgiving day one of my SLES11 servers running 7-8 domUs crashed > > > and restarted three times. Being Thanksgiving day I did not spend a lot > > > of time on it and the quickest fix at the time was moving the domUs to > > > another server, which I did. > > > > > > > You should setup (and have) a serial console logging what''s happening.. > > then you could just check the serial console log for > > errors/tracebacks/crash information. > > > > That''s the best way to track it down and get if fixed. > > > > > I''ve been running a memory test on that server since yesterday. So far > > > no errors. > > > > > > Since bringing up Windows domUs on SLES11 I''ve noticed they seem > > > slightly sluggish compared to the same domU on SLES10SP2. Is there a > > > test I can do to compare the performance? > > > > > > Anyone else running SLES11 that has noticed any of these types of > > > issues? > > > > > > > Are you using GPLPV drivers in the Windows guest? Or Novell''s Windows PV > > drivers? > > > > -- Pasi > > Thanks for the response. I had to change one of these servers back to > sles10sp2 as we were trying to use one of the domUs and it kept > crashing. The end of the log for the domU gives: > > platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state. > platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state. > xc_map_foreign_batch: mmap failed: Cannot allocate memory > xc_map_foreign_batch error 12 >Do you see these in domU or in dom0 ?> Not sure what this means. The host server has 32 gb of RAM and there > were only half a dozen domUs running, with only about 5gb of ram > assigned. > > It''s now running on sles10sp2 dom0 without a problem. I guess it will be > a while before we go with sles11. >Did you dedicate fixed amount of memory for dom0? For example 512 MB or 1 GB using dom0_mem= parameter for Xen in grub.conf ? -- Pasi _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James Pifer
2009-Dec-02 12:21 UTC
Re: [Xen-users] SLES10SP2 (xen 3.2.x) vs SLES11 (xen 3.4.x)
> > Thanks for the response. I had to change one of these servers back to > > sles10sp2 as we were trying to use one of the domUs and it kept > > crashing. The end of the log for the domU gives: > > > > platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state. > > platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state. > > xc_map_foreign_batch: mmap failed: Cannot allocate memory > > xc_map_foreign_batch error 12 > > > > Do you see these in domU or in dom0 ?Not sure.> > > Not sure what this means. The host server has 32 gb of RAM and there > > were only half a dozen domUs running, with only about 5gb of ram > > assigned. > > > > It''s now running on sles10sp2 dom0 without a problem. I guess it will be > > a while before we go with sles11. > > > > Did you dedicate fixed amount of memory for dom0? For example 512 MB or > 1 GB using dom0_mem= parameter for Xen in grub.conf ? >Yes, had that set, but did not have ballooning disabled. I''m going to try and recreate the issue today and see if disabling ballooning fixes it. Thanks, James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users