Whats the maximum cpu cores XCP will see ? _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
2011/3/8 Outback Dingo <outbackdingo@gmail.com>:> Whats the maximum cpu cores XCP will see ? > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > 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@lists.xensource.com http://lists.xensource.com/xen-users
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@lists.xensource.com [mailto:xen-users- > bounces@lists.xensource.com] 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@gmail.com>: > > Whats the maximum cpu cores XCP will see ? > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > 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@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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@gmail.com> 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@lists.xensource.com [mailto:xen-users- > > bounces@lists.xensource.com] 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@gmail.com>: > > > Whats the maximum cpu cores XCP will see ? > > > _______________________________________________ > > > Xen-users mailing list > > > Xen-users@lists.xensource.com > > > 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@lists.xensource.com > > http://lists.xensource.com/xen-users > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- http://mightydreams.blogspot.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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 Thanks, AP From: Tapas Mishra [mailto:mightydreams@gmail.com] 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- > bounces@lists.xensource.com] 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@gmail.com>: > > Whats the maximum cpu cores XCP will see ? > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > 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@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users -- http://mightydreams.blogspot.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] > 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- >> bounces@lists.xensource.com] 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@gmail.com>: >> > Whats the maximum cpu cores XCP will see ? >> > _______________________________________________ >> > Xen-users mailing list >> > Xen-users@lists.xensource.com >> > 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@lists.xensource.com >> http://lists.xensource.com/xen-users > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > > -- > http://mightydreams.blogspot.com > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- Todd Deshane http://www.linkedin.com/in/deshantm http://www.xen.org/products/cloudxen.html _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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@xen.org> wrote:> On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] > > 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- > >> bounces@lists.xensource.com] 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@gmail.com>: > >> > Whats the maximum cpu cores XCP will see ? > >> > _______________________________________________ > >> > Xen-users mailing list > >> > Xen-users@lists.xensource.com > >> > 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@lists.xensource.com > >> http://lists.xensource.com/xen-users > > > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > > > > > -- > > http://mightydreams.blogspot.com > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > > > > > -- > Todd Deshane > http://www.linkedin.com/in/deshantm > http://www.xen.org/products/cloudxen.html >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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. From: Outback Dingo [mailto:outbackdingo@gmail.com] 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@xen.org> wrote: On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] > 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 canenhance> the number of CPU''s to be pinned. > > > > On Tue, Mar 8, 2011 at 11:24 PM, AP Xen <apxeng@gmail.com> 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@lists.xensource.com [mailto:xen-users- >> bounces@lists.xensource.com] 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@gmail.com>: >> > Whats the maximum cpu cores XCP will see ? >> > _______________________________________________ >> > Xen-users mailing list >> > Xen-users@lists.xensource.com >> > 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@lists.xensource.com >> http://lists.xensource.com/xen-users > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > > -- > http://mightydreams.blogspot.com > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- Todd Deshane http://www.linkedin.com/in/deshantm http://www.xen.org/products/cloudxen.html _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] > 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@xen.org> wrote: > > On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >> 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- >>> bounces@lists.xensource.com] 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@gmail.com>: >>> > Whats the maximum cpu cores XCP will see ? >>> > _______________________________________________ >>> > Xen-users mailing list >>> > Xen-users@lists.xensource.com >>> > 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@lists.xensource.com >>> http://lists.xensource.com/xen-users >> >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users >> >> >> -- >> http://mightydreams.blogspot.com >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> 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@lists.xensource.com http://lists.xensource.com/xen-users
On Tue, Mar 8, 2011 at 2:51 PM, Todd Deshane <todd.deshane@xen.org> wrote:> On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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. >Continuation of this conversation, XCP is based on RedHat correct ? which version? cat /etc/redhat-release XCP release 1.0.0-42052c (xcp) [root@xenserver-gvratnau ~]# uname -a Linux xenserver-gvratnau 2.6.32.12-0.7.1.xs1.0.0.311.170586xen #1 SMP Tue Feb 1 17:10:20 EST 2011 i686 i686 i386 GNU/Linux And if i use the source ISO im not getting version 4.1, so i need to natively build XEN 4.1 branch on some redhat release... then "remaster" the iso so its installable on multiple systems without the pain of manually doing this to say 20 machines. I realize im way ahead of the curve here probably and am willing to suffer through some pain, and well report back, document the needed steps, however the remastering piece im sure someone can provide a clue to how this is done. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
It''s based on 32-bit CentOS 5.5 + a custom kernel. -Dustin On Wed, Mar 30, 2011 at 8:15 PM, Outback Dingo <outbackdingo@gmail.com> wrote:> On Tue, Mar 8, 2011 at 2:51 PM, Todd Deshane <todd.deshane@xen.org> wrote: >> >> On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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. > > Continuation of this conversation, XCP is based on RedHat correct ? which > version? > cat /etc/redhat-release > XCP release 1.0.0-42052c (xcp) > [root@xenserver-gvratnau ~]# uname -a > Linux xenserver-gvratnau 2.6.32.12-0.7.1.xs1.0.0.311.170586xen #1 SMP Tue > Feb 1 17:10:20 EST 2011 i686 i686 i386 GNU/Linux > And if i use the source ISO im not getting version 4.1, so i need to > natively build XEN 4.1 branch on some redhat release... then "remaster" the > iso so its installable > on multiple systems without the pain of manually doing this to say 20 > machines. I realize im way ahead of the curve here probably and am willing > to suffer through > some pain, and well report back, document the needed steps, however the > remastering piece im sure someone can provide a clue to how this is done. > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
32bit kernel? Does that mean XCP can only run 32bit guests? -Eduardo On Mar 31, 2011, at 1:20 AM, Dustin Marquess wrote:> It''s based on 32-bit CentOS 5.5 + a custom kernel. > > -Dustin > > On Wed, Mar 30, 2011 at 8:15 PM, Outback Dingo > <outbackdingo@gmail.com> wrote: >> On Tue, Mar 8, 2011 at 2:51 PM, Todd Deshane <todd.deshane@xen.org> >> wrote: >>> >>> On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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. >> >> Continuation of this conversation, XCP is based on RedHat correct ? >> which >> version? >> cat /etc/redhat-release >> XCP release 1.0.0-42052c (xcp) >> [root@xenserver-gvratnau ~]# uname -a >> Linux xenserver-gvratnau 2.6.32.12-0.7.1.xs1.0.0.311.170586xen #1 >> SMP Tue >> Feb 1 17:10:20 EST 2011 i686 i686 i386 GNU/Linux >> And if i use the source ISO im not getting version 4.1, so i need to >> natively build XEN 4.1 branch on some redhat release... then >> "remaster" the >> iso so its installable >> on multiple systems without the pain of manually doing this to say 20 >> machines. I realize im way ahead of the curve here probably and am >> willing >> to suffer through >> some pain, and well report back, document the needed steps, however >> the >> remastering piece im sure someone can provide a clue to how this is >> done. >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users >> > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
No. The hypervisor itself is still 64-bit. -Dustin On Thu, Mar 31, 2011 at 6:35 AM, Eduardo Bragatto <eduardo@bragatto.com> wrote:> 32bit kernel? Does that mean XCP can only run 32bit guests? > > -Eduardo > > On Mar 31, 2011, at 1:20 AM, Dustin Marquess wrote: > >> It''s based on 32-bit CentOS 5.5 + a custom kernel. >> >> -Dustin >> >> On Wed, Mar 30, 2011 at 8:15 PM, Outback Dingo <outbackdingo@gmail.com> >> wrote: >>> >>> On Tue, Mar 8, 2011 at 2:51 PM, Todd Deshane <todd.deshane@xen.org> >>> wrote: >>>> >>>> On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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. >>> >>> Continuation of this conversation, XCP is based on RedHat correct ? which >>> version? >>> cat /etc/redhat-release >>> XCP release 1.0.0-42052c (xcp) >>> [root@xenserver-gvratnau ~]# uname -a >>> Linux xenserver-gvratnau 2.6.32.12-0.7.1.xs1.0.0.311.170586xen #1 SMP Tue >>> Feb 1 17:10:20 EST 2011 i686 i686 i386 GNU/Linux >>> And if i use the source ISO im not getting version 4.1, so i need to >>> natively build XEN 4.1 branch on some redhat release... then "remaster" >>> the >>> iso so its installable >>> on multiple systems without the pain of manually doing this to say 20 >>> machines. I realize im way ahead of the curve here probably and am >>> willing >>> to suffer through >>> some pain, and well report back, document the needed steps, however the >>> remastering piece im sure someone can provide a clue to how this is done. >>> _______________________________________________ >>> Xen-users mailing list >>> Xen-users@lists.xensource.com >>> http://lists.xensource.com/xen-users >>> >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Thu, Mar 31, 2011 at 9:51 AM, Dustin Marquess <dmarquess@gmail.com>wrote:> No. The hypervisor itself is still 64-bit. > > -Dustin > > On Thu, Mar 31, 2011 at 6:35 AM, Eduardo Bragatto <eduardo@bragatto.com> > wrote: > > 32bit kernel? Does that mean XCP can only run 32bit guests? > > > > -Eduardo > > > > On Mar 31, 2011, at 1:20 AM, Dustin Marquess wrote: > > > >> It''s based on 32-bit CentOS 5.5 + a custom kernel. > >> > >> -Dustin > >> > >> On Wed, Mar 30, 2011 at 8:15 PM, Outback Dingo <outbackdingo@gmail.com> > >> wrote: > >>> > >>> On Tue, Mar 8, 2011 at 2:51 PM, Todd Deshane <todd.deshane@xen.org> > >>> wrote: > >>>> > >>>> On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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. >Ok, well heres an update, i did succesfully build/install xen-4.1 on XCP, and got the system to reboot, issue is now that the api seems to be completely out of whack..... and following http://wiki.xensource.com/xenwiki/XCP_Building_Instructions plainly fails with make omake phase1 *** omake: reading OMakefiles *** omake: finished reading OMakefiles (0.17 sec) - build ocaml/util util_inventory.o + ocamlfind ocamlopt -package stdext,log -g -dtypes -thread -warn-error +a-4-6-9-27-28-29 -ccopt -fPIC -I +ocamldoc -c util_inventory.ml File "util_inventory.ml", line 20, characters 11-25: Error: Unbound module Debug.Debugger *** omake: 186/329 targets are up to date *** omake: failed (0.23 sec, 0/14 scans, 1/15 rules, 1/313 digests) *** omake: targets were not rebuilt because of errors: ocaml/util/util_inventory.cmx depends on: ocaml/util/util_inventory.ml ocaml/util/util_inventory.o depends on: ocaml/util/util_inventory.ml make: *** [all] Error 2> >>>>> > >>>> > >>>> 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. > >>> > >>> Continuation of this conversation, XCP is based on RedHat correct ? > which > >>> version? > >>> cat /etc/redhat-release > >>> XCP release 1.0.0-42052c (xcp) > >>> [root@xenserver-gvratnau ~]# uname -a > >>> Linux xenserver-gvratnau 2.6.32.12-0.7.1.xs1.0.0.311.170586xen #1 SMP > Tue > >>> Feb 1 17:10:20 EST 2011 i686 i686 i386 GNU/Linux > >>> And if i use the source ISO im not getting version 4.1, so i need to > >>> natively build XEN 4.1 branch on some redhat release... then "remaster" > >>> the > >>> iso so its installable > >>> on multiple systems without the pain of manually doing this to say 20 > >>> machines. I realize im way ahead of the curve here probably and am > >>> willing > >>> to suffer through > >>> some pain, and well report back, document the needed steps, however the > >>> remastering piece im sure someone can provide a clue to how this is > done. > >>> _______________________________________________ > >>> Xen-users mailing list > >>> Xen-users@lists.xensource.com > >>> http://lists.xensource.com/xen-users > >>> > >> > >> _______________________________________________ > >> Xen-users mailing list > >> Xen-users@lists.xensource.com > >> http://lists.xensource.com/xen-users > > > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Todd Deshane
2011-Apr-13 05:34 UTC
Re: [Xen-devel] Re: [Xen-users] XCP - Maximum CPU cores
adding xen-api to the CC BCC xen-devel On Wed, Apr 13, 2011 at 3:24 AM, Outback Dingo <outbackdingo@gmail.com> wrote:> On Thu, Mar 31, 2011 at 9:51 AM, Dustin Marquess <dmarquess@gmail.com> > wrote: >> >> No. The hypervisor itself is still 64-bit. >> >> -Dustin >> >> On Thu, Mar 31, 2011 at 6:35 AM, Eduardo Bragatto <eduardo@bragatto.com> >> wrote: >> > 32bit kernel? Does that mean XCP can only run 32bit guests? >> > >> > -Eduardo >> > >> > On Mar 31, 2011, at 1:20 AM, Dustin Marquess wrote: >> > >> >> It''s based on 32-bit CentOS 5.5 + a custom kernel. >> >> >> >> -Dustin >> >> >> >> On Wed, Mar 30, 2011 at 8:15 PM, Outback Dingo <outbackdingo@gmail.com> >> >> wrote: >> >>> >> >>> On Tue, Mar 8, 2011 at 2:51 PM, Todd Deshane <todd.deshane@xen.org> >> >>> wrote: >> >>>> >> >>>> On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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. > > > Ok, well heres an update, i did succesfully build/install xen-4.1 on XCP, > and got the system to reboot, issue is now > that the api seems to be completely out of whack..... and following > http://wiki.xensource.com/xenwiki/XCP_Building_Instructions > plainly fails with > make > omake phase1 > *** omake: reading OMakefiles > *** omake: finished reading OMakefiles (0.17 sec) > - build ocaml/util util_inventory.o > + ocamlfind ocamlopt -package stdext,log -g -dtypes -thread -warn-error > +a-4-6-9-27-28-29 -ccopt -fPIC -I +ocamldoc -c util_inventory.ml > File "util_inventory.ml", line 20, characters 11-25: > Error: Unbound module Debug.Debugger > *** omake: 186/329 targets are up to date > *** omake: failed (0.23 sec, 0/14 scans, 1/15 rules, 1/313 digests) > *** omake: targets were not rebuilt because of errors: > ocaml/util/util_inventory.cmx > depends on: ocaml/util/util_inventory.ml > ocaml/util/util_inventory.o > depends on: ocaml/util/util_inventory.ml > make: *** [all] Error 2 > > >> >> >>>>> >> >>>> >> >>>> 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. >> >>> >> >>> Continuation of this conversation, XCP is based on RedHat correct ? >> >>> which >> >>> version? >> >>> cat /etc/redhat-release >> >>> XCP release 1.0.0-42052c (xcp) >> >>> [root@xenserver-gvratnau ~]# uname -a >> >>> Linux xenserver-gvratnau 2.6.32.12-0.7.1.xs1.0.0.311.170586xen #1 SMP >> >>> Tue >> >>> Feb 1 17:10:20 EST 2011 i686 i686 i386 GNU/Linux >> >>> And if i use the source ISO im not getting version 4.1, so i need to >> >>> natively build XEN 4.1 branch on some redhat release... then >> >>> "remaster" >> >>> the >> >>> iso so its installable >> >>> on multiple systems without the pain of manually doing this to say 20 >> >>> machines. I realize im way ahead of the curve here probably and am >> >>> willing >> >>> to suffer through >> >>> some pain, and well report back, document the needed steps, however >> >>> the >> >>> remastering piece im sure someone can provide a clue to how this is >> >>> done. >> >>> _______________________________________________ >> >>> Xen-users mailing list >> >>> Xen-users@lists.xensource.com >> >>> http://lists.xensource.com/xen-users >> >>> >> >> >> >> _______________________________________________ >> >> Xen-users mailing list >> >> Xen-users@lists.xensource.com >> >> http://lists.xensource.com/xen-users >> > >> > >> > _______________________________________________ >> > Xen-users mailing list >> > Xen-users@lists.xensource.com >> > http://lists.xensource.com/xen-users >> > >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > >-- Todd Deshane http://www.linkedin.com/in/deshantm http://www.xen.org/products/cloudxen.html _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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@xen.org> wrote:> On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >> 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@xen.org> wrote: >> >> On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >>> 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- >>>> bounces@lists.xensource.com] 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@gmail.com>: >>>> > Whats the maximum cpu cores XCP will see ? >>>> > _______________________________________________ >>>> > Xen-users mailing list >>>> > Xen-users@lists.xensource.com >>>> > 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@lists.xensource.com >>>> http://lists.xensource.com/xen-users >>> >>> >>> _______________________________________________ >>> Xen-users mailing list >>> Xen-users@lists.xensource.com >>> http://lists.xensource.com/xen-users >>> >>> >>> -- >>> http://mightydreams.blogspot.com >>> >>> _______________________________________________ >>> Xen-users mailing list >>> Xen-users@lists.xensource.com >>> 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@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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@gmail.com>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@xen.org> > wrote: > > On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] > >> 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@xen.org> > wrote: > >> > >> On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] > >>> 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- > >>>> bounces@lists.xensource.com] 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@gmail.com>: > >>>> > Whats the maximum cpu cores XCP will see ? > >>>> > _______________________________________________ > >>>> > Xen-users mailing list > >>>> > Xen-users@lists.xensource.com > >>>> > 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@lists.xensource.com > >>>> http://lists.xensource.com/xen-users > >>> > >>> > >>> _______________________________________________ > >>> Xen-users mailing list > >>> Xen-users@lists.xensource.com > >>> http://lists.xensource.com/xen-users > >>> > >>> > >>> -- > >>> http://mightydreams.blogspot.com > >>> > >>> _______________________________________________ > >>> Xen-users mailing list > >>> Xen-users@lists.xensource.com > >>> 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@lists.xensource.com > > http://lists.xensource.com/xen-users > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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@gmail.com> 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@gmail.com> > 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@xen.org> >> wrote: >> > On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >> >> 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@xen.org> >> >> wrote: >> >> >> >> On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >> >>> 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- >> >>>> bounces@lists.xensource.com] 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@gmail.com>: >> >>>> > Whats the maximum cpu cores XCP will see ? >> >>>> > _______________________________________________ >> >>>> > Xen-users mailing list >> >>>> > Xen-users@lists.xensource.com >> >>>> > 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@lists.xensource.com >> >>>> http://lists.xensource.com/xen-users >> >>> >> >>> >> >>> _______________________________________________ >> >>> Xen-users mailing list >> >>> Xen-users@lists.xensource.com >> >>> http://lists.xensource.com/xen-users >> >>> >> >>> >> >>> -- >> >>> http://mightydreams.blogspot.com >> >>> >> >>> _______________________________________________ >> >>> Xen-users mailing list >> >>> Xen-users@lists.xensource.com >> >>> 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@lists.xensource.com >> > http://lists.xensource.com/xen-users >> > >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
talk was that XCP is build for 32 cores, for 64 a recompile for 64 CPUs is needed, ive got a 96 core and 2 128 core boxes, which Ive read requires xen 4.1 since now that supports> 256 CPUsOn Thu, Apr 14, 2011 at 4:00 PM, Dustin Marquess <dmarquess@gmail.com>wrote:> 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@gmail.com> > 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@gmail.com> > > 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@xen.org> > >> wrote: > >> > On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] > >> >> 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@xen.org> > >> >> wrote: > >> >> > >> >> On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] > >> >>> 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- > >> >>>> bounces@lists.xensource.com] 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@gmail.com>: > >> >>>> > Whats the maximum cpu cores XCP will see ? > >> >>>> > _______________________________________________ > >> >>>> > Xen-users mailing list > >> >>>> > Xen-users@lists.xensource.com > >> >>>> > 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@lists.xensource.com > >> >>>> http://lists.xensource.com/xen-users > >> >>> > >> >>> > >> >>> _______________________________________________ > >> >>> Xen-users mailing list > >> >>> Xen-users@lists.xensource.com > >> >>> http://lists.xensource.com/xen-users > >> >>> > >> >>> > >> >>> -- > >> >>> http://mightydreams.blogspot.com > >> >>> > >> >>> _______________________________________________ > >> >>> Xen-users mailing list > >> >>> Xen-users@lists.xensource.com > >> >>> 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@lists.xensource.com > >> > http://lists.xensource.com/xen-users > >> > > >> > >> _______________________________________________ > >> Xen-users mailing list > >> Xen-users@lists.xensource.com > >> http://lists.xensource.com/xen-users > > > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Okay, I did some digging.>From what I can tell, the Xen kernel itself in XCP is compiled for 256physical CPUs. However, the maximum virtual CPUs to a VM (including to the dom0) is 32. I believe this means that the hypervisor itself will use all available CPUs and schedule VMs across them, however the dom0 itself (or any VM for that matter) will only see 32. From my history with using NetBSD as a dom0 (which doesn''t support SMP under Xen), this is how this works. So I''m not sure this is really a problem? I don''t see why the dom0 would need to see all of the CPUs anyways. -Dustin On Thu, Apr 14, 2011 at 1:14 PM, Outback Dingo <outbackdingo@gmail.com> wrote:> talk was that XCP is build for 32 cores, for 64 a recompile for 64 CPUs is > needed, ive got > a 96 core and 2 128 core boxes, which Ive read requires xen 4.1 since now > that supports >> 256 CPUs > > On Thu, Apr 14, 2011 at 4:00 PM, Dustin Marquess <dmarquess@gmail.com> > wrote: >> >> 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@gmail.com> >> 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@gmail.com> >> > 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@xen.org> >> >> wrote: >> >> > On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >> >> >> 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@xen.org> >> >> >> wrote: >> >> >> >> >> >> On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >> >> >>> 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- >> >> >>>> bounces@lists.xensource.com] 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@gmail.com>: >> >> >>>> > Whats the maximum cpu cores XCP will see ? >> >> >>>> > _______________________________________________ >> >> >>>> > Xen-users mailing list >> >> >>>> > Xen-users@lists.xensource.com >> >> >>>> > 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@lists.xensource.com >> >> >>>> http://lists.xensource.com/xen-users >> >> >>> >> >> >>> >> >> >>> _______________________________________________ >> >> >>> Xen-users mailing list >> >> >>> Xen-users@lists.xensource.com >> >> >>> http://lists.xensource.com/xen-users >> >> >>> >> >> >>> >> >> >>> -- >> >> >>> http://mightydreams.blogspot.com >> >> >>> >> >> >>> _______________________________________________ >> >> >>> Xen-users mailing list >> >> >>> Xen-users@lists.xensource.com >> >> >>> 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@lists.xensource.com >> >> > http://lists.xensource.com/xen-users >> >> > >> >> >> >> _______________________________________________ >> >> Xen-users mailing list >> >> Xen-users@lists.xensource.com >> >> http://lists.xensource.com/xen-users >> > >> > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Actually, sorry, I''m wrong. The 32 limit applies to physical *AND* virtual CPUs. :) -Dustin On Thu, Apr 14, 2011 at 3:39 PM, Dustin Marquess <dmarquess@gmail.com> wrote:> Okay, I did some digging. > > From what I can tell, the Xen kernel itself in XCP is compiled for 256 > physical CPUs. However, the maximum virtual CPUs to a VM (including > to the dom0) is 32. > > I believe this means that the hypervisor itself will use all available > CPUs and schedule VMs across them, however the dom0 itself (or any VM > for that matter) will only see 32. From my history with using NetBSD > as a dom0 (which doesn''t support SMP under Xen), this is how this > works. So I''m not sure this is really a problem? I don''t see why the > dom0 would need to see all of the CPUs anyways. > > -Dustin > > > On Thu, Apr 14, 2011 at 1:14 PM, Outback Dingo <outbackdingo@gmail.com> wrote: >> talk was that XCP is build for 32 cores, for 64 a recompile for 64 CPUs is >> needed, ive got >> a 96 core and 2 128 core boxes, which Ive read requires xen 4.1 since now >> that supports >>> 256 CPUs >> >> On Thu, Apr 14, 2011 at 4:00 PM, Dustin Marquess <dmarquess@gmail.com> >> wrote: >>> >>> 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@gmail.com> >>> 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@gmail.com> >>> > 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@xen.org> >>> >> wrote: >>> >> > On Tue, Mar 8, 2011 at 2:46 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >>> >> >> 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@xen.org> >>> >> >> wrote: >>> >> >> >>> >> >> On Tue, Mar 8, 2011 at 6:32 PM, AP Xen <apxeng@gmail.com> 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@gmail.com] >>> >> >>> 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@gmail.com> 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@lists.xensource.com [mailto:xen-users- >>> >> >>>> bounces@lists.xensource.com] 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@gmail.com>: >>> >> >>>> > Whats the maximum cpu cores XCP will see ? >>> >> >>>> > _______________________________________________ >>> >> >>>> > Xen-users mailing list >>> >> >>>> > Xen-users@lists.xensource.com >>> >> >>>> > 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@lists.xensource.com >>> >> >>>> http://lists.xensource.com/xen-users >>> >> >>> >>> >> >>> >>> >> >>> _______________________________________________ >>> >> >>> Xen-users mailing list >>> >> >>> Xen-users@lists.xensource.com >>> >> >>> http://lists.xensource.com/xen-users >>> >> >>> >>> >> >>> >>> >> >>> -- >>> >> >>> http://mightydreams.blogspot.com >>> >> >>> >>> >> >>> _______________________________________________ >>> >> >>> Xen-users mailing list >>> >> >>> Xen-users@lists.xensource.com >>> >> >>> 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@lists.xensource.com >>> >> > http://lists.xensource.com/xen-users >>> >> > >>> >> >>> >> _______________________________________________ >>> >> Xen-users mailing list >>> >> Xen-users@lists.xensource.com >>> >> http://lists.xensource.com/xen-users >>> > >>> > >> >> >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users