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[Xen-devel] SMP on X86
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] SMP on X86 |
| From: | peter Bier <peter_bier@xxxxxx> |
| Date: | Tue, 18 Oct 2005 18:29:51 +0000 (UTC) |
| Delivery-date: | Tue, 18 Oct 2005 18:31:10 +0000 |
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I compiled the unstable Version and enabled SMP as well as SMT in Domain 0,
but I see only one CPU on a System that has a hyperthreading CPU ( P4 630 )
which is recognized by a native SMP/SMT Kernel.
Is there anything I have to do to configure the Hypervisor to support SMP and
SMT ? If this is the case, how can I achieve that Xen support hyperthreading.
I checked SMT using the abovementioned native kernel and achieved a performance
enhancment of about 20 percent in comparison to a non-SMT kernel, running a
simple CPU-bound floating point program. I got no improvement when using the
SMP/SMT kernel of Xen.
Thanks in advance
Peter Bier
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