Date: Wed, 4 Apr 2001 17:21:53 -0400 From: "Jason T. Luttgens" <lucky@lansters.com> To: "'Karsten W. Rohrbach'" <karsten@rohrbach.de>, "'Mike Smith'" <msmith@freebsd.org> Cc: "'Doug Hardie'" <bc979@lafn.org>, <freebsd-stable@freebsd.org>, "'David W. Chapman Jr.'" <dwcjr@inethouston.net> Subject: RE: Network performance question Message-ID: <000001c0bd4d$45acfc30$0200010a@lucky> In-Reply-To: <20010404021332.F71262@mail.webmonster.de>
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>-----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
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