netdev - Re: tcp bw in 2.6

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Message-ID: <20071002171154.GM17418@bitmover.com>
Date:	Tue, 2 Oct 2007 10:11:54 -0700
From:	lm@...mover.com (Larry McVoy)
To:	Ben Greear <greearb@...delatech.com>
Cc:	lm@...mover.com, Herbert Xu <herbert@...dor.apana.org.au>,
	torvalds@...ux-foundation.org, davem@...emloft.net,
	wscott@...mover.com, netdev@...r.kernel.org
Subject: Re: tcp bw in 2.6

> I have a more complex configuration & application, but I don't see this 
> problem in my testing.  Using e1000 nics and modern hardware 

I'm using a similar setup, what kernel are you using?

> I am purposefully setting the socket send/rx buffers, as well has 
> twiddling with the tcp and netdev related tunables.  

Ben sent those to me, see below, they didn't make any difference.
I tried diddling the socket send/recv buffers to 10MB, that didn't
help.  The defaults didn't help.  1MB didn't help and 64K didn't
help.
-- 
---
Larry McVoy                lm at bitmover.com           http://www.bitkeeper.com
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