On Fri, Apr 18, 2008 at 10:18:33AM -0500, Anthony Liguori wrote: > >Sleeping in the context of vcpu's is extremely bad (eg virtio-block > >blocks in write() throttling which kills performance). It should wait > >on IO completions instead (qemu-kvm.c creates a pthread "waitqueue" to > >resolve that issue). > > > >Other than that looks fine to me, will give it a try. > > > > FWIW, I'm not getting wonderful results in KVM. It's hard to tell > though because time seems wildly inaccurate (even with kvm clock in the > guest). The time issue appears unrelated to this set of patches.
Oh, you won't get completion signals on the aio eventfd. You might want to try the select-with-timeout() stuff. Will submit that with proper signalfd emulation shortly. ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
