From owner-freebsd-net@FreeBSD.ORG Fri Sep 29 21:16:01 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AB4E016A40F for ; Fri, 29 Sep 2006 21:16:01 +0000 (UTC) (envelope-from silby@silby.com) Received: from niwun.pair.com (niwun.pair.com [209.68.2.70]) by mx1.FreeBSD.org (Postfix) with SMTP id 6355143D4C for ; Fri, 29 Sep 2006 21:16:00 +0000 (GMT) (envelope-from silby@silby.com) Received: (qmail 24239 invoked by uid 3193); 29 Sep 2006 21:15:59 -0000 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 29 Sep 2006 21:15:59 -0000 Date: Fri, 29 Sep 2006 17:15:58 -0400 (EDT) From: Mike Silbersack X-X-Sender: silby@niwun.pair.com To: Randall Stewart In-Reply-To: <451D884F.1030807@cisco.com> Message-ID: References: <451C4850.5030302@freebsd.org> <451D884F.1030807@cisco.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: freebsd-net@freebsd.org, freebsd-current@freebsd.org, Andre Oppermann , gallatin@cs.duke.edu Subject: Re: Much improved sosend_*() functions X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Sep 2006 21:16:01 -0000 On Fri, 29 Sep 2006, Randall Stewart wrote: > Hmm.. I would think 512b and 1K will not show any > improvement.. since they would probably end up either > in an mbuf chain.. or a single 2k (or maybe 4k) cluster.. I know, I just want to make sure that it doesn't somehow cause performance loss for those cases! > In fact I have always thought we should: > > a) have no data portion in an mbuf.. just pointers i.e. always > an EXT > > b) Have a 256/512 and 1k cluster too.. Implement and benchmark it. :) Mike "Silby" Silbersack