On 22 October 2015 at 11:24, Luigi Rizzo <[email protected]> wrote: > On Thu, Oct 22, 2015 at 11:12 AM, Adrian Chadd <[email protected]> wrote: >> On 22 October 2015 at 09:35, Slawa Olhovchenkov <[email protected]> wrote: >>> On Sun, Oct 18, 2015 at 07:45:52PM -0700, Adrian Chadd wrote: >>> >>>> Heh, file a bug with luigi; it should be defined better inside netmap >>>> itself. >>> >>> I am CC: luigi. >>> >>> Next question: do kevent RX/TX sync? >>> In my setup I am need to manual NIOCTXSYNC/NIOCRXSYNC. >> >> Hi, >> >> Nope. kqueue() doesn't do the implicit sync like poll() does; it's >> just the notification path. > > actually not. When the file descriptor is registered there > is an implicit sync, and there is another one when an event > is posted for the file descriptor. > > unless there are bugs, of course.
Hm, I think there are bugs. I'll have to go remember what I saw when I was messing with this. I actually think it's doing the full sync each time and not the lazy sync (ie, only when the ring is empty) which kills performance. I think that was the "bug". -a _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
