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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] XCP - Maximum CPU cores
Strangely according to the xen.spec that gets installed using the xen SRPM from the sources ISO, it looks like it was setup with a max_phys_cpus setting of 256. Of course it also refers to an empty patch, so who really knows. -Dustin On Thu, Apr 14, 2011 at 12:55 PM, Outback Dingo <outbackdingo@xxxxxxxxx> wrote: > I built and installed XEN 4.1 on the XCP platform, and rebooted, it loaded > but none of the SRs appeared available > so VMs wouldnt start, i then rebooted back into "stock" with the 3.4.2, and > the xapi wouldnt even run, so it appears > I tired to rebuild the API to no avail hoping maybe then the SR issues would > be forgiven > at this point im at XCP 1.0 with the 4.1 in a booted but unusable state > also kinda curious what the next "devel" drop will be ready and if itll be > at 4.1 by then, ive got a few CPU heavy boxes > which are really not useable to capacity at the moment, so crossing fingers > for someone with knowledge to pitch in with > pointers > > On Thu, Apr 14, 2011 at 3:48 PM, Dustin Marquess <dmarquess@xxxxxxxxx> > wrote: >> >> I'm having the same issue myself. However I'm trying to stay as close >> to 'stock' XCP 1.0 as possible, since I need stability. >> >> I have the 2 source ISOs & even the xen-api.hg Mercurial repo cloned. >> However, I'm not sure which piece of XCP I need to recompile. Is it >> just the hypervisor kernel itself (eg, /boot/xen-3.4.2.gz), or the >> dom0 kernel, or the entire xapi? >> >> The build instructions @ >> http://wiki.xen.org/xenwiki/XCP_Building_Instructions just show how to >> rebuild xapi itself, not the entire XCP platform, sadly. >> >> -Dustin >> >> On Tue, Mar 8, 2011 at 11:51 AM, Todd Deshane <todd.deshane@xxxxxxx> >> wrote: >> > On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@xxxxxxxxx> wrote: >> >> Technically, it is possible as XCP is open source. You would have to >> >> download the source ISO and rebuild Xen with nr_phys_cpus=128. Trying >> >> to >> >> replace Xen in XCP with the Xen 4.x might be more difficult. >> >> >> > >> > True it is open source and should be possible. You're going to want to >> > make sure you use at least the 4.1 branch as it has better libxl >> > integration. >> > >> > Do report any problems that you find to xen-devel. I think the >> > intention is that this should work, I'm just not sure how much >> > community testing we have gotten to this point. Do let us know if/when >> > you test it and how you progress. >> > >> > Thanks, >> > Todd >> > >> > >> >> >> >> >> >> From: Outback Dingo [mailto:outbackdingo@xxxxxxxxx] >> >> Sent: Tuesday, March 08, 2011 11:08 AM >> >> To: Todd Deshane >> >> Cc: AP Xen; Tapas Mishra; xen-users; Boris Quiroz >> >> >> >> Subject: Re: [Xen-users] XCP - Maximum CPU cores >> >> >> >> >> >> >> >> well, i need 128 cores now on XCP :( so im hardware heavy and cant >> >> utilize >> >> 3/4 my cores on 2 systems, so how can one compensates for this >> >> >> >> is it possible to use xen 4.x on XCP 1.0 ? >> >> >> >> On Tue, Mar 8, 2011 at 1:42 PM, Todd Deshane <todd.deshane@xxxxxxx> >> >> wrote: >> >> >> >> On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@xxxxxxxxx> wrote: >> >>> It is called max_phys_cpus=<nr> >> >>> >> >>> http://xenbits.xensource.com/xen-unstable.hg/rev/d7cbcf5d7cd6 >> >>> >> >>> >> >>> >> >>> BTW, the default is 128 for Xen 4.x >> >>> >> >> >> >> Just FYI, the plan will be to move to Xen 4.1+ starting with XCP 1.1 >> >> >> >> We do also plan to track xen-unstable with an XCP unstable version as >> >> well. More to come on this. >> >> >> >> Thanks, >> >> Todd >> >> >> >>> >> >>> >> >>> Thanks, >> >>> >> >>> AP >> >>> >> >>> >> >>> >> >>> From: Tapas Mishra [mailto:mightydreams@xxxxxxxxx] >> >>> Sent: Tuesday, March 08, 2011 10:03 AM >> >>> To: xen-users >> >>> Cc: AP Xen; Boris Quiroz; Outback Dingo >> >>> >> >>> Subject: Re: [Xen-users] XCP - Maximum CPU cores >> >>> >> >>> >> >>> >> >>> Hi please elaborate as how the compilation method of hypervisor can >> >>> enhance >> >>> the number of CPU's to be pinned. >> >>> >> >>> >> >>> >> >>> On Tue, Mar 8, 2011 at 11:24 PM, AP Xen <apxeng@xxxxxxxxx> wrote: >> >>> >> >>> The default is 32, however you can up the limit to 64 with a compile >> >>> time >> >>> option. So, It depends on how the hypervisor was compiled. >> >>> >> >>> Thanks, >> >>> AP >> >>> >> >>>> -----Original Message----- >> >>>> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users- >> >>>> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Boris Quiroz >> >>>> Sent: Tuesday, March 08, 2011 6:04 AM >> >>>> To: Outback Dingo >> >>>> Cc: xen-users >> >>>> Subject: Re: [Xen-users] XCP - Maximum CPU cores >> >>>> >> >>>> 2011/3/8 Outback Dingo <outbackdingo@xxxxxxxxx>: >> >>>> > Whats the maximum cpu cores XCP will see ? >> >>>> > _______________________________________________ >> >>>> > Xen-users mailing list >> >>>> > Xen-users@xxxxxxxxxxxxxxxxxxx >> >>>> > http://lists.xensource.com/xen-users >> >>>> > >> >>>> >> >>>> Somewhere I read they were 32 cores maximum. I'm checking.. >> >>>> >> >>>> Cheers. >> >>>> >> >>>> -- >> >>>> @cereal_bars >> >>>> >> >>>> _______________________________________________ >> >>>> Xen-users mailing list >> >>>> Xen-users@xxxxxxxxxxxxxxxxxxx >> >>>> http://lists.xensource.com/xen-users >> >>> >> >>> >> >>> _______________________________________________ >> >>> Xen-users mailing list >> >>> Xen-users@xxxxxxxxxxxxxxxxxxx >> >>> http://lists.xensource.com/xen-users >> >>> >> >>> >> >>> -- >> >>> http://mightydreams.blogspot.com >> >>> >> >>> _______________________________________________ >> >>> Xen-users mailing list >> >>> Xen-users@xxxxxxxxxxxxxxxxxxx >> >>> http://lists.xensource.com/xen-users >> >>> >> >> >> >> >> >> -- >> >> Todd Deshane >> >> http://www.linkedin.com/in/deshantm >> >> http://www.xen.org/products/cloudxen.html >> >> >> >> >> > >> > >> > >> > -- >> > Todd Deshane >> > http://www.linkedin.com/in/deshantm >> > http://www.xen.org/products/cloudxen.html >> > >> > _______________________________________________ >> > Xen-users mailing list >> > Xen-users@xxxxxxxxxxxxxxxxxxx >> > http://lists.xensource.com/xen-users >> > >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@xxxxxxxxxxxxxxxxxxx >> http://lists.xensource.com/xen-users > > _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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