On Thu, 23 Sep 2004 00:06:28 +0200
Andi Kleen [off-list ref] wrote:

quoted

One thing that could be biting us is the nagle check which
probably needs to be adjusted to use the standard MSS not
the TSO one... perhaps play with this patch:

I tried it and it breaks the performance completely
(21MB/s) 

You said you were getting 22MB/sec before the change, right?