Date: Fri, 31 Aug 2012 23:33:13 +0700 From: Eugene Grosbein <egrosbein@rdtc.ru> To: Adrian Chadd <adrian@freebsd.org> Cc: pyunyh@gmail.com, freebsd-net@freebsd.org, Lev Serebryakov <lev@freebsd.org>, Ian Smith <smithi@nimnet.asn.au> Subject: Re: Bad routing performance on 500Mhz Geode LX with CURRENT, ipfw and mpd5 Message-ID: <5040E749.9070200@rdtc.ru> In-Reply-To: <5040DE1D.7040700@rdtc.ru> References: <1865271844.20120829131610@serebryakov.spb.ru> <CAHu1Y70MynCMQTrJUMwTZ0%2BLrM1JiZFt_B77028XHfoiRgzmaA@mail.gmail.com> <1807373989.20120829223125@serebryakov.spb.ru> <20120830152726.A33776@sola.nimnet.asn.au> <534292400.20120830131158@serebryakov.spb.ru> <20120831180721.GB3208@michelle.cdnetworks.com> <50404957.302@rdtc.ru> <5040508D.9080107@rdtc.ru> <CAJ-VmomzY1TFjwPdZWGStb9wBZ1RZrk3QZnJMGkxvftWGKPCHQ@mail.gmail.com> <5040DE1D.7040700@rdtc.ru>
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31.08.2012 22:54, Eugene Grosbein пишет: > I've rebuilt by kernel with SCHED_ULE and excluded PREEMPTION. > Stock driver works without changes in behaviour and driver from HEAD > now works very similar to old one: LA is not higher than 2 and > userland is pretty responsive. Also, transfer speed with new driver is > several percent more. That's good. > > Care to explain such dramatic difference for new driver > with/without PREEMPTION for relatively slow uniprocessor system? > >> And run 4BSD + no preemption, try again? I've tried 4BSD without preemption too. Can't see any difference from ULE without preemption. Should I stick with 4BSD for UP system? Eugene Grosbein
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