Date: Sat, 27 Sep 2008 11:15:59 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: Danny Braniss <danny@cs.huji.ac.il> Cc: freebsd-hackers@freebsd.org, Jeremy Chadwick <koitsu@FreeBSD.org>, freebsd-stable@freebsd.org Subject: Re: bad NFS/UDP performance Message-ID: <alpine.BSF.1.10.0809271114450.20117@fledge.watson.org> In-Reply-To: <E1KjEZw-000KkH-GP@cs1.cs.huji.ac.il> References: <E1Kj7NA-000FXz-3F@cs1.cs.huji.ac.il> <20080926081806.GA19055@icarus.home.lan> <E1Kj9bR-000H7t-0g@cs1.cs.huji.ac.il> <20080926095230.GA20789@icarus.home.lan> <E1KjEZw-000KkH-GP@cs1.cs.huji.ac.il>
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On Fri, 26 Sep 2008, Danny Braniss wrote: > after more testing, it seems it's related to changes made between Aug 4 and > Aug 29 ie, a kernel built on Aug 4 works fine, Aug 29 is slow. I'l now try > and close the gap. I think this is the best way forward -- skimming August changes, there are a number of candidate commits, including retuning of UDP hashes by mav, my rwlock changes, changes to mbuf chain handling, etc. Thanks, Robert N M Watson Computer Laboratory University of Cambridge
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