[Qemu-devel] Re: [RFC] Some more io-thread optimizations

2011-02-16 Thread Jan Kiszka
On 2011-02-15 23:03, Marcelo Tosatti wrote: > On Mon, Feb 14, 2011 at 10:50:42AM +0100, Jan Kiszka wrote: >> Hi, >> >> patch below further reduces the io-thread overhead in tcg mode so that >> specifically emulating smp boxes gets noticeably faster. Its essence: >> poll the file descriptors until s

[Qemu-devel] Re: [RFC] Some more io-thread optimizations

2011-02-15 Thread Marcelo Tosatti
On Mon, Feb 14, 2011 at 10:50:42AM +0100, Jan Kiszka wrote: > Hi, > > patch below further reduces the io-thread overhead in tcg mode so that > specifically emulating smp boxes gets noticeably faster. Its essence: > poll the file descriptors until select returns 0, keeping the global > mutex locked