Date: Wed, 23 Apr 2008 11:05:25 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: Darren Reed <darrenr@freebsd.org> Cc: arch@freebsd.org, freebsd-current@freebsd.org, "Christian S.J. Peron" <csjp@FreeBSD.org> Subject: Re: HEADS UP: zerocopy bpf commits impending Message-ID: <20080423110419.M35222@fledge.watson.org> In-Reply-To: <1208944957.9641.1249417345@webmail.messagingengine.com> References: <20080317133029.GA19369@sub.vaned.net> <20080317134335.A3253@fledge.watson.org> <47FB586F.90606@freebsd.org> <20080408132058.U10870@fledge.watson.org> <1208944957.9641.1249417345@webmail.messagingengine.com>
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On Wed, 23 Apr 2008, Darren Reed wrote: > Out of curiosity, were those numbers for single cpu/core systems or systems > with more than one cpu/core active/available? > > I know the testing I did was all single threaded, so moving time from kernel > to user couldn't be expected to make a large overall difference in a non-SMP > kernel (NetBSD-something at the time.) I believe all multi-core. BTW, if you are set up to do performance measurement on BPF, we'd really love to see further feedback relating to successful or unsuccessful measurement. Robert N M Watson Computer Laboratory University of Cambridge
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