Hello, FYI, my last firewall in production : OpenBSD 5.7 (GENERIC.MP) #2: Mon Jul 27 16:16:48 CEST 2015 cpu0: Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz ix0 at pci2 dev 0 function 0 "Intel 82599"
Peaks at 46% cpu on core1, traffic around 2 Gbps (230 kpps). I'm very eager to see it with a full MP IP stack :) -- Cordialement, Pierre BARDOU -----Message d'origine----- De : owner-t...@openbsd.org [mailto:owner-t...@openbsd.org] De la part de Michael McConville Envoyé : mardi 8 décembre 2015 22:32 À : Jeff Drago <jeffrey_inter...@yahoo.com> Cc : tech@OpenBSD.org Objet : Re: OPENBSD performance // intel NIC interrupts // interrupt moderation Jeff Drago wrote: > Hello - first post here , hopefully it is the right forum. > > I recently setup a bgp box on top of OPENBSD 5.5 Generic.MP, with 6 > INTEL EM nics.The problem is that when I get 700Mbits in one > interface, the CPU is peaking at 88% (interrupt). > > I read about interrupt moderation and I dont know how to play with > that in my box. is it the case to update the NIC driver? here is the > reference that the NIC supports int > moderation:http://download.intel.com/design/network/applnots/ap450.pdf > > Not sure how to turn that on or off in OpenBSD. Any help is greatly > appreciated. Here is the spec for the box (NETMAP > L-800)http://www.serveru.us/en/images/ServerU/Folder-Brochure_en.pdf 5.5 is no longer supported. Upgrade sequentially (5.5 -> 5.6, 5.6 -> 5.7, 5.7 -> 5.8) and see if that fixes it. I've seen a huge network performance improvement over that series of upgrades. Also, if the problem persists, please include a dmesg with your next email. Thanks, Michael
