| To: | Simon Kirby <sim@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: Route cache performance |
| From: | Martin Josefsson <gandalf@xxxxxxxxxxxxxx> |
| Date: | Sat, 17 Sep 2005 11:04:09 +0200 |
| Cc: | Robert Olsson <Robert.Olsson@xxxxxxxxxxx>, Alexey Kuznetsov <kuznet@xxxxxxxxxxxxx>, Eric Dumazet <dada1@xxxxxxxxxxxxx>, netdev@xxxxxxxxxxx |
| In-reply-to: | <20050917002823.GB19112@netnation.com> |
| References: | <20050825200543.GA6612@yakov.inr.ac.ru> <20050825212211.GA23384@netnation.com> <20050826115520.GA12351@yakov.inr.ac.ru> <17167.29239.469711.847951@robur.slu.se> <20050906235700.GA31820@netnation.com> <17182.64751.340488.996748@robur.slu.se> <20050907162854.GB24735@netnation.com> <20050907195911.GA8382@yakov.inr.ac.ru> <20050913221448.GD15704@netnation.com> <17191.55685.861191.831981@robur.slu.se> <20050917002823.GB19112@netnation.com> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
On Fri, 2005-09-16 at 17:28 -0700, Simon Kirby wrote: > I got stuck in some mud again, but I was able to run a small oprofile. > > nf_iterate was near the top even though the firewall was empty, so I > changed CONFIG_IP_NF_IPTABLES=y to CONFIG_IP_NF_IPTABLES=m (and didn't > load it). Throughput went up from 173 Mbps to 232 Mbps...yikes. > Conntrack was never compiled. I'll do some more profiling when I get > a chance... Yes, it's bloody slow even without any rules loaded at the moment, it's on my todo list... If you want even less overhead then don't even select CONFIG_NETFILTER, that way you avoid compiling in the netfilter hooks completely. -- /Martin
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