On Tue, 2022-03-08 at 17:54 -0700, Jens Axboe wrote: > On 3/8/22 3:17 PM, Olivier Langlois wrote: > > The sqpoll thread can be used for performing the napi busy poll in > > a > > similar way that it does io polling for file systems supporting > > direct > > access bypassing the page cache. > > > > The other way that io_uring can be used for napi busy poll is by > > calling io_uring_enter() to get events. > > > > If the user specify a timeout value, it is distributed between > > polling > > and sleeping by using the systemwide setting > > /proc/sys/net/core/busy_poll. > > I think we should get this queued up, but it doesn't apply to > for-5.18/io_uring at all. I can fix it up, but just curious what you > tested against? > Hi Jens, I did wrote the patch from git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git My testing systems are based on 5.16. I have backported the patch and compiled 5.16.12 with the patch for my testing. sorry if I didn't use the right repo...
