From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nivedita Singhvi <niv@us.ibm.com>
Subject: Re: [RESEND] tuning linux for high network performance?
Date: Wed, 23 Oct 2002 10:12:23 -0700
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Cc: Roy Sigurd Karlsbakk <roy@karlsbakk.net>,
   "David S. Miller" <davem@rth.ninka.net>, netdev@oss.sgi.com,
   Kernel mailing list <linux-kernel@vger.kernel.org>
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To: bert hubert <ahu@ds9a.nl>
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bert hubert wrote:

> I still refuse to believe that a 1.8GHz Pentium4 can only checksum
> 250megabits/second. MD Raid5 does better and they probably don't use a
> checksum as braindead as that used by TCP.
> 
> If the checksumming is not the problem, the copying is, which would be a
> weakness of your hardware. The function profiled does both the copying and
> the checksumming.

Yep, its not so much the checksumming as the fact that this is
done over each byte of data and copied.

thanks,
Nivedita