From owner-freebsd-hackers Mon Oct 8 6:21:43 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from proxy.centtech.com (moat.centtech.com [206.196.95.10]) by hub.freebsd.org (Postfix) with ESMTP id 53C9737B405; Mon, 8 Oct 2001 06:21:36 -0700 (PDT) Received: from sprint.centtech.com (sprint.centtech.com [10.177.173.31]) by proxy.centtech.com (8.11.6/8.11.6) with ESMTP id f98DLZ410982; Mon, 8 Oct 2001 08:21:35 -0500 (CDT) Received: from centtech.com (proton [10.177.173.77]) by sprint.centtech.com (8.9.3+Sun/8.9.3) with ESMTP id IAA06292; Mon, 8 Oct 2001 08:21:34 -0500 (CDT) Message-ID: <3BC1A825.A1839C6C@centtech.com> Date: Mon, 08 Oct 2001 08:20:37 -0500 From: Eric Anderson Reply-To: anderson@centtech.com Organization: Centaur Technology X-Mailer: Mozilla 4.78 [en] (X11; U; Linux 2.2.12 i386) X-Accept-Language: en MIME-Version: 1.0 To: Danny Braniss Cc: freebsd-hackers@freebsd.org, stable@freebsd.org Subject: Re: strange network performace References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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 How many times did you run the test? Could it have been cached in host B, but not C? What about disk performance? Maybe one is ATA66 or 100, and tthe other is not? Host C may only be UDMA33, and possibly have a slow drive, with a lower amount of memory for caching. Did you rebuild kernels on any of them? Eric Danny Braniss wrote: > > setup: > host A: dual pentium III/1GHz (Dell 2450) > host B: dual pentium III/950MHz (Intel STL2) > host C: Pentium III/1GHz (Dell GX150) > > all connected at 100Mgb full duplex > all three are running FreeBSD 4.4. > > all three have identical troughput when writing to a NetAPP fileserver ~ 10MBs > > but: > B -> A: ~ 6MBs > C -> A: ~ 2MBs > > Q: why is C -> A so bad? > > danny > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message -- ------------------------------------------------------------- Eric Anderson anderson@centtech.com Centaur Technology # rm -rf /bin/laden ------------------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message