[Xen-devel] Re: IDLE domain is scheduled more than dom0

[Dan Magenheimer <dan.magenheimer@xxxxxx>]

>       Shouldn't IDLE domain not be scheduled for most time? Because
> idle task will call into PAL for power save on XEN/IA64, the performance
> is really, really bad to boot Dom0. The net effect is about ten times
> slower. After adding "sched=bvt", everything back to normal.

If the sedf scheduler is scheduling the idle domain when
domain0 is runnable, surely this is affecting performance
on x86 also and is a bug that should be fixed?

Has anyone done any performance testing (on x86) since
sedf was checked in as the default?

Dan



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