Date: Thu, 30 Apr 2009 20:32:00 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: Oliver Pinter <oliver.pntr@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: NetBSD 5.0 statistics Message-ID: <alpine.BSF.2.00.0904302030520.8997@fledge.watson.org> In-Reply-To: <6101e8c40904300750i3e86fc0cnef09b0d4533627f7@mail.gmail.com> References: <6101e8c40904300750i3e86fc0cnef09b0d4533627f7@mail.gmail.com>
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On Thu, 30 Apr 2009, Oliver Pinter wrote: > Is the FreeBSD's FS management so slow? > > http://www.netbsd.org/~ad/50/img15.html > > Or so big is the difference between the two cpu scheduler? Also, there's a known and serious performance regression in CAM relating to tgged queueing, and the generic disk sort routine, introduced 7.1, which will be fixed in 7.2. I can't speak more generally to the benchmarks -- we'll need to run them in a controlled environment and see if we can reproduce the results. Robert N M Watson Computer Laboratory University of Cambridge
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