Re: [Qemu-devel] [PATCH 0/3] aio-posix: polling mode bug fixes

2018-09-18 Thread Fam Zheng
On Wed, 09/12 19:10, Paolo Bonzini wrote: > Patch 1 fixes a too-strict assertion that could fire when aio_poll > is called in parallel with aio_set_fd_handler. > > Patch 2 and 3 reinstate the performance benefits of polling, which were > essentially disabled by commit 70232b5253 ("aio-posix:

[Qemu-devel] [PATCH 0/3] aio-posix: polling mode bug fixes

2018-09-12 Thread Paolo Bonzini
Patch 1 fixes a too-strict assertion that could fire when aio_poll is called in parallel with aio_set_fd_handler. Patch 2 and 3 reinstate the performance benefits of polling, which were essentially disabled by commit 70232b5253 ("aio-posix: Don't count ctx->notifier as progress when polling",