Date: Mon, 17 Mar 2008 11:19:22 -0700 From: Julian Elischer <julian@elischer.org> To: Robert Watson <rwatson@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: <47DEB62A.4030301@elischer.org> In-Reply-To: <20080317134335.A3253@fledge.watson.org> References: <20080317133029.GA19369@sub.vaned.net> <20080317134335.A3253@fledge.watson.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Robert Watson wrote: > On Mon, 17 Mar 2008, Christian S.J. Peron wrote: > >> Just wanted to give a heads up that I plan to start merging the work >> located in the zerocopy bpf perforce branch. We have been working on >> this project for about a year now and feel that it is ready to come >> into the tree. >> >> I will begin to merge hopefully today [assuming nobody has any >> concerns] or tommorow. Zerocopy bpf will be disabled by default, and >> can be enabled globally though the use of a sysctl variable. Once the >> kernel bits are in and we sort out a couple minor nits in >> libpcap+tcpdump, we will be be looking at getting our libpcap patches >> committed upstream. I will post a patch for people to experiment with >> in the meantime after the kernel commits are complete. >> >> We do not anticipate this will have any effect on existing bpf >> consumers like libpcap, tcpdump etc... so if something breaks, it >> shouldn't have and we need to know about :) We were pretty careful >> about preserving the ABI. The only exception to this is, netstat will >> need a recompile because the size of it's bpf stats structure changed. >> >> So if there are any objections or concerns, now is the time to raise >> them. > > Per previous posts, interested parties can find the slides on the design > from the BSDCan 2008 developer summit here: > > > http://www.watson.org/~robert/freebsd/2007bsdcan/20070517-devsummit-zerocopybpf.pdf with the video of the talk at: http://www.freebsd.org/~julian/BSDCan-2007/rwatson_bpf.mov > > > Robert N M Watson > Computer Laboratory > University of Cambridge > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?47DEB62A.4030301>