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Re: bad TSO performance in 2.6.9-rc2-BK

To: "David S. Miller" <davem@xxxxxxxxxxxxx>
Subject: Re: bad TSO performance in 2.6.9-rc2-BK
From: Andi Kleen <ak@xxxxxxx>
Date: Wed, 22 Sep 2004 23:56:57 +0200
Cc: Nivedita Singhvi <niv@xxxxxxxxxx>, ak@xxxxxxx, anton@xxxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <>
References: <20040920063012.GL2825@krispykreme> <> <> <> <> <> <> <>
Sender: netdev-bounce@xxxxxxxxxxx
> I have no idea why people think TSO will make some single
> stream TCP test go faster, it doesn't buy you more bytes
> on the wire :-)

It definitely helps on 10GB/s - without it the maximum
for single stream is slower. 

I suspect with a slow bus you can also see advantages
on 1Gb/s.


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