From owner-freebsd-stable Wed Apr 4 14:22:34 2001 Delivered-To: freebsd-stable@freebsd.org Received: from snapper.lansters.com (21-155-124-64.dsl.lan2wan.com [64.124.155.21]) by hub.freebsd.org (Postfix) with ESMTP id 7AA4737B732; Wed, 4 Apr 2001 14:22:27 -0700 (PDT) (envelope-from lucky@lansters.com) Received: from lucky (lucky.lansters.com [10.1.0.2]) by snapper.lansters.com (8.11.2/8.9.3) with SMTP id f34LMLh57632; Wed, 4 Apr 2001 17:22:21 -0400 (EDT) (envelope-from lucky@lansters.com) From: "Jason T. Luttgens" To: "'Karsten W. Rohrbach'" , "'Mike Smith'" Cc: "'Doug Hardie'" , , "'David W. Chapman Jr.'" Subject: RE: Network performance question Date: Wed, 4 Apr 2001 17:21:53 -0400 Message-ID: <000001c0bd4d$45acfc30$0200010a@lucky> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: <20010404021332.F71262@mail.webmonster.de> X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >-----Original Message----- >From: Karsten W. Rohrbach [mailto:karsten@rohrbach.de] >Sent: Tuesday, April 03, 2001 8:14 PM >To: Mike Smith >Cc: Jason T. Luttgens; 'Doug Hardie'; freebsd-stable@freebsd.org; >'David >W. Chapman Jr.' >Subject: Re: Network performance question > >what exactly is the mainboard hardware? in which slot is the card? >i recall having had severe problems on some bx tyan board with 5 pci >slots. when i used slot 1 or 5 i had dropped interrupts since they were >shared with i tink the onboard scsi. using the middle 3 slots the >problem was gone. linux seems to handle interrupt sharing on pci >differently from feebsd. ABIT BE6-II, in the slot marked PCI2 on the motherboard. This is the computer I was using to listen to the packets. The computer that is transmitting the packets is an ASUS P2B-D. After performing more testing at work and home, I am beginning to belive that what tcpreplay says it transmitted is not what was really transmitted (not that the listening machine is capturing everything either). I am in the process of trying to prove this. I'll post my findings as soon as I can figure anything out. Some of my testing at work revealed a strange thing. The 3COM card in a computer I have at work typically received 407-409 packets from another computer transmitting (a Sony VAIO laptop with builtin Intel Etherexpress Pro 10/100 card), then stopped seeing packets for some random number (usually less than 2000), receive 407-409 packets again, and repeat the cycle. Anyone know what that might mean? Thanks again for everyone's help and comments - eventually I will figure this out.... Jason > >/k > >-- >> Experiments must be reproducible; they should all fail in the same >way. >KR433/KR11-RIPE -- http://www.webmonster.de -- ftp://ftp.webmonster.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message