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Date:      Thu, 1 Mar 2007 10:22:01 -0500 (EST)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        Andre Oppermann <andre@freebsd.org>
Cc:        freebsd-net@freebsd.org, freebsd-current@freebsd.org, rwatson@freebsd.org, kmacy@freebsd.org
Subject:   Re: Large TCP send socket buffer optimizations
Message-ID:  <17894.61337.772803.325091@grasshopper.cs.duke.edu>
In-Reply-To: <45E6E2E8.5060408@freebsd.org>
References:  <45E6E2E8.5060408@freebsd.org>

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Andre Oppermann writes:
 > This patch solves the problem by maintaining an offset pointer in the socket
 > buffer to give tcp_output() the closest mbuf right away avoiding the traversal
 > from the beginning.
 > 
 > With this patch we should be able to compete nicely for the Internet land
 > speed record again.

Great news.  I will test soon.

Have you found the bug which makes a freebsd sender spew
duplicate acks?  This will have a negative affect on
any benchmarks..

Drew



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