[Xen-users] Does nosmp option affect performance if Xen is built with SMP.

["Liang Yang" <multisyncfe991@xxxxxxxxxxx>]

Hi,

I originally built Xen on a SMP platform. Later I need to run some testing 
on Uni-Processor platform. So I append nosmp to Xen boot options. Now Xen 
can boot into a Uni-Processor mode. After doing some I/O performance 
benchmarking, I really doubt if there is performance impact by adding nosmp 
and force a SMP version of Xen to a UP version. Is it better to use Xen 
which is built on a native Uni-Processor platform instead of using nosmp to 
a SMP Xen version?
Thanks,

Liang




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