On 06/24/2012 07:24 PM, Michael S. Tsirkin wrote: > I'm looking at reducing the interrupt overhead for virtualized guests: > some workloads spend a large part of their time processing interrupts. > > On kvm, an EOI write from the guest causes an expensive exit to host; we > avoid this using shared memory. > > The patches work fine on my boxes. See individual patches > for perf tests. You need to patch qemu to whitelist the kvm feature. > qemu patch was sent separately. > > The patches are against Linus's master and apply to kvm.git > cleanly. The last patch in the series, supplying the host > part, also depends on the ISR optimization patch that I > have for convenience included in the series (patch 2), > I also included a documentation patch (patch 1) - it is > here since it clarifies patch 2. This revision does not yet address > Thomas's idea of reworking the APIC page handling. Changes to this > optimization would require reworking this last patch in the series. > > The rest of the patchset has not changed significantly since v2. Thanks, applied. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
