Date: Sat, 17 Oct 2009 18:49:08 +0500 From: rihad <rihad@mail.ru> To: Julian Elischer <julian@elischer.org> Cc: freebsd-net@freebsd.org, Robert Watson <rwatson@FreeBSD.org> Subject: Re: dummynet dropping too many packets Message-ID: <4AD9CB54.2020608@mail.ru> In-Reply-To: <4AD97CF7.6020602@elischer.org> References: <4AD6D99E.10805@mail.ru> <4AD95493.40200@mail.ru> <4AD96422.1040008@mail.ru> <4AD97CF7.6020602@elischer.org>
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Julian Elischer wrote: > rihad wrote: > >>> >> The change definitely helped! There are now more than 3200 users >> online, 460-500 mbps net traffic load, and normally 10-60 (up to 150 >> once or twice) consistent drops per second as opposed to several >> hundred up to 1000-1500 packets dropped per second before the rebuild. >> What's interesting is that the drops now began only after the ipfw >> table had around 3000 entries, not 2000 like before, so the change >> definitely helped. Just how high can maxlen be? Should I try 2048? 4096? > > is Hz still 4000? > No, I've set it to 2000 as per recommendations for HZ in NOTES. Should I try 4000? 6000? 8000? Or maybe just increase the bce queue length and rebuild? :)
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