On Thu, Aug 16, 2018 at 06:06:16PM +0200, Michal Kubecek wrote:

quoted

If not, we can go from there and evaluate this much larger patch
series.  But let's try the simple thing first.

At high packet rates (say 30K pkt/s and more), we can still saturate the
CPU. This is also mentioned in the announcement with claim that switch
to rbtree based queue would be necessary to fully address that. My tests
seem to confirm that but I'm still not sure it is worth backporting
something as intrusive into stable 4.4.

No, it is not.  If you worry about those things, you should not be
running a 4.4 kernel, use 4.14 or newer please.

thanks,

greg k-h