Re: [Qemu-devel] [PATCH] posix-aio-compat: fix latency issues

2011-08-08 Thread Frediano Ziglio
2011/8/8 Avi Kivity a...@redhat.com: In certain circumstances, posix-aio-compat can incur a lot of latency:  - threads are created by vcpu threads, so if vcpu affinity is set,   aio threads inherit vcpu affinity.  This can cause many aio threads   to compete for one cpu.  - we can create up

Re: [Qemu-devel] [PATCH] posix-aio-compat: fix latency issues

2011-08-08 Thread Frediano Ziglio
2011/8/8 Avi Kivity a...@redhat.com: On 08/08/2011 03:49 PM, Frediano Ziglio wrote: 2011/8/8 Avi Kivitya...@redhat.com:  In certain circumstances, posix-aio-compat can incur a lot of latency:    - threads are created by vcpu threads, so if vcpu affinity is set,     aio threads inherit