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Date:      Mon, 25 Jun 2001 10:53:46 EDT
From:      Bsdguru@aol.com
To:        hackers@freebsd.org
Subject:   Re: Status of encryption hardware support in FreeBSD
Message-ID:  <107.1bc2228.2868aa7a@aol.com>

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In a message dated 06/24/2001 2:53:32 PM Eastern Daylight Time, 
soren@soekris.com writes:

> And btw, hardware beats software anytime. The fastest PC processor right
>  now is about the same speed as the slowest hardware.

what are the numbers? Are you accounting for the overhead in accessing the 
hardware? the impact of the stop-and-wait requirements for hardware 
processing? What about bus availability in a heavily utilized router? You are 
going to double the bus requirement.

Most people take a rather trivial approach to such evaluations, and i suppose 
im concerned about anyone who thinks that hardware is "always faster" than 
software, because that argument is blatently wrong. a 33Mhz ASIC will not 
always be faster than the host, particularly with transfer and setup 
requirements. It has to be 3-5 times faster than the host just to break even.

Bryan

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