From owner-freebsd-stable Wed Dec 12 8:58:33 2001 Delivered-To: freebsd-stable@freebsd.org Received: from smtp1.sentex.ca (smtp1.sentex.ca [199.212.134.4]) by hub.freebsd.org (Postfix) with ESMTP id 0A1E737B417 for ; Wed, 12 Dec 2001 08:58:29 -0800 (PST) Received: from simoeon.sentex.net (pyroxene.sentex.ca [199.212.134.18]) by smtp1.sentex.ca (8.11.6/8.11.6) with ESMTP id fBCGwPT45702; Wed, 12 Dec 2001 11:58:26 -0500 (EST) (envelope-from mike@sentex.net) Message-Id: <5.1.0.14.0.20011212114951.03ed21e0@marble.sentex.ca> X-Sender: mdtpop@marble.sentex.ca X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Wed, 12 Dec 2001 11:51:47 -0500 To: Ted Sikora , freebsd-stable@FreeBSD.ORG From: Mike Tancsa Subject: Re: dc0 TX underrun In-Reply-To: <3C178018.9129CD47@ntplx.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Yes, I see this on my 4port DLINK card. The strange thing is that it only happens when I have it in a 2U box attached to a riser card. If I pop the card in another box right into the PCI slot, I dont get these under runs, nor do I get below average performance. After the card goes into this mode, I see ruby3# /usr/local/netperf/netperf -l 10 -H 10.2.2.1 -t TCP_STREAM -i 10,2 -I 99,5 -- -m 4096 -s 57344 -S 57344 TCP STREAM TEST to 10.2.2.1 : +/-2.5% @ 99% conf. : histogram Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 57344 57344 4096 10.01 66.64 ruby3# as opposed to ~ 90 in another box that does not have the riser card. ---Mike At 11:04 AM 12/12/01 -0500, Ted Sikora wrote: >Did a make/buildworld on several machines yesterday. All the dc0 cards >are getting >the TX errors again ... not often but they appear to be struggling. > >Dec 12 10:47:48 dhcp-209-54-72-109 /kernel: dc0: TX underrun -- >increasing TX threshold >Dec 12 10:47:54 dhcp-209-54-72-109 last message repeated 2 times >Dec 12 10:47:57 dhcp-209-54-72-109 /kernel: dc0: TX underrun -- using >store and forward mode > >-- >Ted Sikora >tsikora@ntplx.net > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-stable" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message