svn commit: r342908 - head/sys/netpfil/ipfw

[Gleb Smirnoff]

On Thu, Jan 10, 2019 at 01:47:57AM +0000, Andrey V. Elsukov wrote:
A>   glebius@ has reported that they at Netflix discovered, that initialization
A>   of this variable produces significant overhead on packet processing.
A>   After patching I managed to increase performance of packet processing on
A>   simple routing with ipfw(4) firewalling to about 11% from 9.8Mpps up to
A>   11Mpps (Xeon E5-2660 v4@ + Mellanox 100G card).

And with ipfw being processed at driver level, rather than ip_input()
the boost is even more dramatic than 11%.

https://github.com/glebius/FreeBSD/commits/pfil

Soon to reach FreeBSD head :)

-- 
Gleb Smirnoff