* John Jasen <jja...@realityfailure.org> [2013-08-09 03:36]: > Topping out per 82599 card at ~8k interrupts does not surprise me, as I > was unable to get any of mine beyond that. I personally think the 82598 > is better under OpenBSD, using about 40% of the interrupts for similar > bandwidth. > > The system showing 90% utilization at 16k interrupts surprises me. My > systems showed about 35-40% utilization at 25-30k interrupts.
with pretty much all modern chips doing some form of interrupt mitigation, the # of int/s is meaningless to judge on the amount of traffic - # of interrupts is NOT proportional to # of packets. Intel has been using a max of 8k int/s for their network chips for a long time. the work per-interrupt is everything but constant. -- Henning Brauer, h...@bsws.de, henn...@openbsd.org BS Web Services GmbH, http://bsws.de, Full-Service ISP Secure Hosting, Mail and DNS Services. Dedicated Servers, Root to Fully Managed Henning Brauer Consulting, http://henningbrauer.com/
