Re: [kvm-devel] [PATCH 1/4] Only select once per-main_loop iteration

2008-05-04 Thread Avi Kivity
Anthony Liguori wrote: > QEMU is rather aggressive about exhausting the wait period when selecting. > This is fine when the wait period is low and when there is significant delays > in-between selects as it improves IO throughput. > > With the IO thread, there is a very small delay between selects

[kvm-devel] [PATCH 1/4] Only select once per-main_loop iteration

2008-05-03 Thread Anthony Liguori
QEMU is rather aggressive about exhausting the wait period when selecting. This is fine when the wait period is low and when there is significant delays in-between selects as it improves IO throughput. With the IO thread, there is a very small delay between selects and our wait period for select i