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Re: [Xen-devel] [PATCH]x86: Increase the default NR_CPUS to 128.
| To: | Jan Beulich <JBeulich@xxxxxxxxxx>, Xiantao Zhang <xiantao.zhang@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH]x86: Increase the default NR_CPUS to 128. |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Wed, 10 Mar 2010 15:27:36 +0000 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 10 Mar 2010 07:28:20 -0800 |
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| Thread-topic: | [Xen-devel] [PATCH]x86: Increase the default NR_CPUS to 128. |
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On 10/03/2010 14:38, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote: >>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 10.03.10 15:21 >>> >> It would certainly be nice, but at least we can boot all CPUs and run VMs >> across them, minus the finer-grained control. Is this halfway default >> solution for these bigger machines worse than not making an effort at all? > > Not sure - with NUMA also defaulting to on, guest creation may fail > because of the failure to enforce the affinity. Not nice, especially > since (I think; a general problem of the tools) the error indication is > rather hard to interpret by someone not knowing the source code. Hm, I didn't really think of that... -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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