From owner-freebsd-hackers Mon Sep 10 12:35:36 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from prism.flugsvamp.com (cb58709-a.mdsn1.wi.home.com [24.17.241.9]) by hub.freebsd.org (Postfix) with ESMTP id 723F837B405 for ; Mon, 10 Sep 2001 12:35:33 -0700 (PDT) Received: (from jlemon@localhost) by prism.flugsvamp.com (8.11.0/8.11.0) id f8AJYmP14585; Mon, 10 Sep 2001 14:34:48 -0500 (CDT) (envelope-from jlemon) Date: Mon, 10 Sep 2001 14:34:48 -0500 From: Jonathan Lemon To: Julian Elischer Cc: Jonathan Lemon , kent@erix.ericsson.se, hackers@freebsd.org Subject: Re: How to force small TCP packets? Message-ID: <20010910143448.C9056@prism.flugsvamp.com> References: <200109101817.f8AIH7t11927@prism.flugsvamp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre2i In-Reply-To: Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, Sep 10, 2001 at 12:43:15PM -0700, Julian Elischer wrote: > just set the MTU on the sender to something really small (120 byres) No. The data gets coalesced in the socket receive buffer on the other end, remember? So depending on how fast things are running, there may or may not be enough data present to satisfy the "100 byte" read, which is proably the edge case he is attempting to debug. -- Jonathan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message