Date: Fri, 30 Nov 2001 10:48:41 -0500 From: John Capo <jc@irbs.com> To: babkin@freebsd.org Cc: jc@irbs.com, freebsd-hackers@freebsd.org Subject: Re: FreeBSD performing worse than Linux? Message-ID: <20011130104841.B90660@exuma.irbs.com> In-Reply-To: <3C0707BD.B8FA31F8@bellatlantic.net>; from babkin@bellatlantic.net on Thu, Nov 29, 2001 at 11:14:53PM -0500 References: <20011128153817.T61580@monorchid.lemis.com> <15364.38174.938500.946169@caddis.yogotech.com> <20011129004234.A16101@exuma.irbs.com> <3C0707BD.B8FA31F8@bellatlantic.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Quoting Sergey Babkin (babkin@bellatlantic.net):
> John Capo wrote:
> > 21:41:49.001039 client.4427 > server.22: P 144:192(48) ack 12937 win 17376 <nop,nop,timestamp 53827954 105528895> (DF) [tos 0x10]
> > 21:41:49.001073 server.22 > client.4427: . 28049:29497(1448) ack 192 win 17328 <nop,nop,timestamp 105529049 53827954> (DF) [tos 0x10]
> > 21:41:49.001085 server.22 > client.4427: P 29497:30313(816) ack 192 win 17328 <nop,nop,timestamp 105529049 53827954> (DF) [tos 0x10]
> > 21:41:49.109131 client.4427 > server.22: . ack 12937 win 17376 <nop,nop,timestamp 53827967 105528895> (DF) [tos 0x10]
>
> And here a _very_ pathological thing has happened: the server
> just forgot to send the data between sequence numbers 12937
> and 28049. Since the dump was done on the server side, this suggests
> that something very bad has happened with the TCP state on
> the server side. Possibly the value of the current sequence number
> in the protocol control block got overwritten by something.
Very interesting, I overlooked that. Full dumps:
http://www.irbs.net/server-dump.html
http://www.irbs.net/client-dump.html
I was beginning to think it was a client problem since 4.3 clients
and Winblows clients work fine. A -stable client built from November
7 CVS code does not see the pause either. The client in the dump
is built from CVS on November 11.
John Capo
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20011130104841.B90660>