Re: [Qemu-block] [Qemu-devel] [PATCH RFC 0/4] aio: Use epoll_wait in aio_poll

2015-07-08 Thread Christian Borntraeger
Am 08.07.2015 um 03:02 schrieb Fam Zheng: > On Tue, 07/07 16:54, Christian Borntraeger wrote: >> Am 30.06.2015 um 15:19 schrieb Fam Zheng: >>> epoll is more scalable than ppoll. It performs faster than ppoll when the >>> number of polled fds is high. >>> >>> See patch 4 for an example of the senari

Re: [Qemu-block] [Qemu-devel] [PATCH RFC 0/4] aio: Use epoll_wait in aio_poll

2015-07-07 Thread Fam Zheng
On Tue, 07/07 16:54, Christian Borntraeger wrote: > Am 30.06.2015 um 15:19 schrieb Fam Zheng: > > epoll is more scalable than ppoll. It performs faster than ppoll when the > > number of polled fds is high. > > > > See patch 4 for an example of the senario and some benchmark data. > > > > Note: it

Re: [Qemu-block] [Qemu-devel] [PATCH RFC 0/4] aio: Use epoll_wait in aio_poll

2015-07-07 Thread Christian Borntraeger
Am 30.06.2015 um 15:19 schrieb Fam Zheng: > epoll is more scalable than ppoll. It performs faster than ppoll when the > number of polled fds is high. > > See patch 4 for an example of the senario and some benchmark data. > > Note: it is only effective on iothread (dataplane), while the main loop