From owner-freebsd-net Mon Nov 12 4:46:29 2001 Delivered-To: freebsd-net@freebsd.org Received: from smtp1.sentex.ca (smtp1.sentex.ca [199.212.134.4]) by hub.freebsd.org (Postfix) with ESMTP id E245637B417 for ; Mon, 12 Nov 2001 04:46:23 -0800 (PST) Received: from chimp.simianscience.com (cage.simianscience.com [64.7.134.1]) by smtp1.sentex.ca (8.11.6/8.11.6) with SMTP id fACCk0X89991; Mon, 12 Nov 2001 07:46:00 -0500 (EST) (envelope-from mike@sentex.net) From: Mike Tancsa To: zec@tel.fer.hr (Marko Zec) Cc: freebsd-net@freebsd.org Subject: Re: Intel nics (fxp, wx, gx) questions Date: Mon, 12 Nov 2001 07:45:59 -0500 Message-ID: References: <20011110141356.A60420@ada.snu.ac.kr> In-Reply-To: X-Mailer: Forte Agent 1.8/32.548 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Sat, 10 Nov 2001 20:52:09 +0000 (UTC), in sentex.lists.freebsd.net you wrote: >Kyunghwan Kim wrote: > >> Some questions related to intel nic drivers: >> >> 1. fxp microcode >> Marko has summited fxp interrupt bundling patch before. >> Is there any reference to write fxp microcode? > >No that I am aware of, as I just used the microcode supplied with = Intel's >Linux driver in binary form. > >After conducting a few TCP throughput tests with interrupt coalescing >microcode, I found that depending of the specific environment, quite = serious >TCP perfomance degradation can follow as a result of additional delay Hi, Can you give some more details as to where this introduces performance problems, and if so, how is the best way to work around it? ---Mike Mike Tancsa (mdtancsa@sentex.net) =09 Sentex Communications Corp, =09 Waterloo, Ontario, Canada "Given enough time, 100 monkeys on 100 routers=20 could setup a national IP network." (KDW2) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message