Date: Fri, 3 Jul 1998 10:45:59 +0200 (MET DST) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: julian@whistle.com (Julian Elischer) Cc: eivind@yes.no, jkh@time.cdrom.com, net@FreeBSD.ORG Subject: Re: how about including dummynet in 2.2.7 ? Message-ID: <199807030846.KAA13909@labinfo.iet.unipi.it> In-Reply-To: <Pine.BSF.3.95.980703024046.5714P-100000@current1.whistle.com> from "Julian Elischer" at Jul 3, 98 02:44:48 am
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> This is the time to do this..... > Peter Wemm is possibly going to add the transparent proxy stuff which > blows the struct well over 1 mbuf anyhow. > his patch also includes the "use a cluster" fix from -current" why not increasing default mbufs to 256 instead of the current 128 ? I have heard this is already done in -current and i think it would also improve performance with mid-sized packets (e.g. http requests and such) by not requiring a cluster. > I think the field in the pkthdr isn't that importand an issue as the > kernel will still be self consitant (except for denis's driver which ships > as a .o (from memory)) it is annoying though because the struct is not initialized upon allocation, and i had to hunt all the places where an mbuf was allocated and zero the new field explicitly. I think the problem in using dummynet together with divert (or nat ? Philippe ?) come from some missing initialization of this field. Also, the new field has no use for dummynet since i can safely store the associated info in a static variable, since it is used immediately. Not so nice, and it needs some further trick to work with SMP, but we already have a similar hack^H^H^H^Hsolution for divert. cheers luigi -----------------------------+-------------------------------------- Luigi Rizzo | Dip. di Ingegneria dell'Informazione email: luigi@iet.unipi.it | Universita' di Pisa tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy) fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/ _____________________________|______________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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