Date: Wed, 27 Jan 1999 18:43:26 -0800 (PST) From: Julian Elischer <julian@whistle.com> To: Robert Watson <robert@cyrus.watson.org> Cc: net@FreeBSD.ORG Subject: Re: Netgraph new version Message-ID: <Pine.BSF.3.95.990127184026.10889F-100000@current1.whistle.com> In-Reply-To: <Pine.BSF.3.96.990126130127.27150A-100000@fledge.watson.org>
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Performance is very good. on par with the performance of processing of ethernet frames. We don't have exact comparisons because we don't have the same hardware setup. The only person who could give you any idea would be John Hay because he's run new and old code in the same setup, however I'd be surprised if he could see any difference. in performance. The amount of overhead code run for each node is relatively small. On Tue, 26 Jan 1999, Robert Watson wrote: > > Julian-- > > This all sounds great to me. I was wondering if you had had a chance to > test performance changes as a result of the structural changes? I have > not had a chance to look at the implementation, but I look forward to the > chance :). > > > On Thu, 21 Jan 1999, Julian Elischer wrote: > > > A prerelease version is available at: > > The release version is waiting for 'make world' to work again, so > > We can do our last tests on it. This is substantially production quality > > code, as we have spent a week cleaning and preening. > > > > ftp://ftp.whistle.com/pub/archie/misc/netgraph.tgz > > > > This file includes a USEFUL README file, a tar file of new files and a > > patch file to change existing files.. (including a patch to netstat to > > allow it to report netgraph 'socket' nodes.) > > > > Man pages for all the node types > > > > patches to if_sr.c and if_ar.c compile cleanly and give examples of how a > > sync card should be interfaced.. (if_ar.c is easier to understand) (these > > cannot be tested as we don't have those cards, but the netgraph code has > > been tested with our own proprietary card) > > > > All nodes except the sync cards can be loaded as KLD modules > > however to compile the sync cards in you also need the base netgraph > > module in the kernel. > > > > requires newest version of uipc_domain.c and domian.h > > > > If you want to test it without the sync cards, you can load the whole > > thing into a new kernel as modules and try it from there. > > > > You should read the man pages: > > netgraph(4) > > ng_socket > > netgraph(3) > > ngctl(8) > > nghook(8) > > ng_{other tyes} > > > > probably in that order > > > > The following modules are supplied: > > base - the base framework. > > UI - simple node t add/strip "Un-numbered Information" header (0x03) > > async - do rfc 1662 framing/unframing on a packet > > cisco - 'cisco' hdlc framing and protocol. > > echo - echoes packets back at sender > > hole - blackhole (discard device) > > iface - netgraph node on one side, regular interface on the other > > rfc1490 - rfc1490 frame-relay protocol encapsulation > > lmi - frame relay link management protocol handler. > > frame-relay - frame-relay channel multiplexor/demultiplexor > > socket - netgraph node on one side, socket on the other > > tee - assist debugging by tapping a link > > tty - netgraph node on one side, tty line disciplin on the other. > > > > plus: > > if_sr.c, if_ar.c patches to make these netgraph capable. > > > > ppp - unfinished ppp node > > vjc - unfinished van-jacobson compression node > > > > patches are also available for mpd to allow mpd to run multilink ppp > > into a netgraph socket. (not supplied) > > > > Netgraph is designed to allow quick development of production quality > > modules that can be re-used in such environments as ATM, fram-relay, ppp, > > async-ppp, ISDN. > > > > Each module knows how to do ONE thing. you hook them together to do more. > > > > julian > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-net" in the body of the message > > > > > Robert N Watson > > robert@fledge.watson.org http://www.watson.org/~robert/ > PGP key fingerprint: 03 01 DD 8E 15 67 48 73 25 6D 10 FC EC 68 C1 1C > > Carnegie Mellon University http://www.cmu.edu/ > TIS Labs at Network Associates, Inc. http://www.tis.com/ > SafePort Network Services http://www.safeport.com/ > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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