On 11/4/24 12:29 AM, hexue wrote: > On 11/1/2024 08:06, Jens Axboe wrote: >> On 11/1/24 3:19 AM, hexue wrote: >>> A new hybrid poll is implemented on the io_uring layer. Once IO issued, >>> it will not polling immediately, but block first and re-run before IO >>> complete, then poll to reap IO. This poll function could be a suboptimal >>> solution when running on a single thread, it offers the performance lower >>> than regular polling but higher than IRQ, and CPU utilization is also lower >>> than polling. >> >> This looks much better now. >> >> Do you have a patch for liburing to enable testing of hybrid polling >> as well? Don't care about perf numbers for that, but it should get >> exercised. > > Sure, I'll add some liburing test cases and submit patch soon. Thanks! Bonus for also documenting the setup flag in man/io_uring_setup.2 as well in the liburing repo. If things don't get documented, then people don't know they exist... -- Jens Axboe
