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Message-ID: <443C1738.20605@gentoo.org>
Date: Tue, 11 Apr 2006 21:53:12 +0100
From: Daniel Drake <dsd@gentoo.org>
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To: John Heffner <jheffner@psc.edu>
CC: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: 2.6.17 regression: Very slow net transfer from some hosts
References: <443C03E6.7080202@gentoo.org> <443C024C.2070107@psc.edu> <443C0B74.50305@gentoo.org> <443C09A7.2040900@psc.edu>
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John Heffner wrote:
>> tcp_wmem: 4096    16384   131072
>> tcp_rmem: 4096    87380   174760
>> tcp_mem: 98304   131072  196608
> 
> These are (I assume) with the patch reversed.  What are the values with 
> the patch applied?

Yes- that was on a good kernel, with the patch reversed.

On a bad kernel, with the patch applied (2.6.16-git16):

tcp_wmem: 4096    16384   4194304
tcp_rmem: 4096    87380   4194304
tcp_mem: 98304   131072  196608

They seem to be identical, which makes sense, since most websites work 
just fine.

I am sending tcpdump's privately to you and Stephen. If anyone else 
wants to see them, just ask.

Daniel