Date: Mon, 27 Oct 1997 09:44:40 -0800 (PST) From: Julian Elischer <julian@whistle.com> To: Charles Henrich <henrich@crh.cl.msu.edu> Cc: Don Lewis <Don.Lewis@tsc.tdk.com>, Matt Thomas <matt@3am-software.com>, Jaye Mathisen <mrcpu@cdsnet.net>, freebsd-hackers@FreeBSD.ORG Subject: Re: de0 errors Message-ID: <Pine.BSF.3.95.971027094301.897C-100000@current1.whistle.com> In-Reply-To: <19971027091235.60825@crh.cl.msu.edu>
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try netstat -I de0 -b 1 On Mon, 27 Oct 1997, Charles Henrich wrote: > On the subject of Re: de0 errors, Don Lewis stated: > > > On Oct 23, 7:51am, Matt Thomas wrote: > > } Subject: Re: de0 errors > > } At 12:57 AM 10/23/97 -0400, Charles Henrich wrote: > > } >After moving to 2.2.5-RELEASE im seeing: > > } > > > } >Oct 23 00:32:12 msunews /kernel: ccd0-3: Concatenated disk drivers > > } >Oct 23 00:35:45 msunews /kernel: de0: abnormal interrupt: transmit underflow > > } >(raising TX threshold to 96|256) > > } >Oct 23 00:36:01 msunews /kernel: de0: abnormal interrupt: transmit underflow > > } >(raising TX threshold to 8|512) > > } >Oct 23 00:37:41 msunews /kernel: de0: abnormal interrupt: transmit underflow > > } >(raising TX threshold to 1024) > > } >Oct 23 00:55:14 msunews /kernel: de0: abnormal interrupt: transmit underflow > > } >(switching to store-and-forward mode) > > } > > > } >Any ideas? Are these informational, or are they bad? > > } > > } they are informational. > > > > In the sense that everything is working, but if you're seeing transmit > > underflows even when the TX threshold has been set to 1024, then I suspect > > you'll have a real problem getting anywhere near full performance out > > of the card. > > Can you suggest any debugging tips for isolating and fixing this problem? > > Just using FTP between two hosts on the 100mbit net I see 2-3MB/sec and > receive at about half that. However this system is also a very busy news > server. I wish FreeBSD had a top or systat function that showed network > traffic in K/Sec. > > -Crh > > Charles Henrich Michigan State University henrich@msu.edu > > http://pilot.msu.edu/~henrich >
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