RE: [Xen-users] XCP - Maximum CPU cores

["AP Xen" <apxeng@xxxxxxxxx>]

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@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

 

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