Pyun YongHyeon wrote: > On Fri, Mar 05, 2010 at 11:16:41PM +0200, Ian FREISLICH wrote: > > Pyun YongHyeon wrote: > > > Thanks for the info. Frankly, I have no idea how to explain the > > > issue given that you have no heavy load. > > > > How many cores would be involved in handling the traffic and runnig > > PF rules on this machine? There are 4x > > CPU: Quad-Core AMD Opteron(tm) Processor 8354 (2194.51-MHz K8-class CPU) > > In this server. I'm also using carp extensively. > > > > pf(4) uses a single lock for processing, number of core would have > no much benefit.
What's interesting is the effect on CPU utilisation and interrupt generation that net.inet.ip.fastforwarding has: net.inet.ip.fastforwarding=1 interrupt rate is around 10000/s per bce interface cpu 8.0% interrupt net.inet.ip.fastforwarding=0 interrupt rate is around 5000/s per bce interface cpu 13.0% interrupt It also appears to not drop packets, but I'll have to watch it for longer. Ian -- Ian Freislich _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"