Date: Thu, 30 Aug 2012 13:11:58 +0400 From: Lev Serebryakov <lev@FreeBSD.org> To: Ian Smith <smithi@nimnet.asn.au> Cc: freebsd-net@freebsd.org Subject: Bad routing performance on 500Mhz Geode LX with CURRENT, ipfw and mpd5 (was: ipfw, "ip|all" proto and PPPoE -- does PPPoE packets passed to ipfw?) Message-ID: <534292400.20120830131158@serebryakov.spb.ru> In-Reply-To: <20120830152726.A33776@sola.nimnet.asn.au> References: <1865271844.20120829131610@serebryakov.spb.ru> <CAHu1Y70MynCMQTrJUMwTZ0%2BLrM1JiZFt_B77028XHfoiRgzmaA@mail.gmail.com> <1807373989.20120829223125@serebryakov.spb.ru> <20120830152726.A33776@sola.nimnet.asn.au>
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Hello, Ian. You wrote 30 =D0=B0=D0=B2=D0=B3=D1=83=D1=81=D1=82=D0=B0 2012 =D0=B3., 10:23= :56: >> Yep, I'll collapse my two-rule chains in one rule. IS> I guess if the issue persists, we may need to see more of your ruleset. Not a problem at all, here it is: http://lev.serebryakov.spb.ru/_sklad/firewall.ipfw IS> Hmm, you shouldn't see ANY pppoe traffic on ng0, only on the interface IS> mpd5 uses to connect with your DSL modem/bridge. Nor would you expect Yep. I didn't see it. My question is, really: why vr1 (my physical interface, used to connect to my ISP) takes 50%+ of CPU when traffic is only 40mbit/s down and about 20mbit/s up (with many connections)? I was afraid, that all PPPoE traffic is inspected by ipfw and it causes additional CPU load. Yes, it is only 500Mhz Geode LX, but it is only 40 mbit/s and 4.5Kpps in both directions, nothing like full 100Mbit or more, and I've learned "empirical" rule/heuristics about 1Gbit(!) per 1Ghz(!) for softrouters, So, theoretically, 40mbit should not be a problem at all for this hardware. And now I have not-working WiFi (this box is also AP) when wired traffic is high (wifi speed drops down to 100KB/s from 2.5-3MB/s without wired traffic), userland freezes under load (very bad with ULE, better with 4BSD), and inability to pass through 40Mbit in both directions simultaneously. --=20 // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>
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