Yeah, I'm looking at the changes that caused this now. Hopefully I'll have this updated today.
On Thu, Apr 12, 2018 at 4:01 PM, Ryan Stone <ryst...@gmail.com> wrote: > Spinning in the kernel for a full second is a really bad idea. At > minimum this is going to hold off all callouts from one of the callout > threads for up to a full second as ixgbe_local_timer() waits for the > core mutex. That chews up two CPU cores doing busy-wait loops (the > ixgbe_stop() thread busy-waits in msec_delay and the callout thread > adaptively spins waiting for the mutex). If any other thread tries to > acquire the core lock they also adaptively spin on the mutex chewing > up yet more cores. This includes any threads trying to fetch > interface status (e.g. ifconfig), various interrupt handlers, etc. > -- [image: Limelight Networks] <http://www.limelight.com> Stephen Hurd* Principal Engineer* EXPERIENCE FIRST. +1 616 848 0643 <+1+616+848+0643> www.limelight.com [image: Facebook] <https://www.facebook.com/LimelightNetworks>[image: LinkedIn] <http://www.linkedin.com/company/limelight-networks>[image: Twitter] <https://twitter.com/llnw> _______________________________________________ firstname.lastname@example.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"