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Subject: Re: EGTB - dumb questions?

Author: Robert Hyatt

Date: 07:47:07 08/07/01

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On August 07, 2001 at 02:28:57, Dan Andersson wrote:

>If the compression subject is fairly regular, a simple (i.e. few computations)
>compression/decompression will give a big compression ratio. And in many cases
>its faster to access compressed data than uncompressed because of the speed of
>the storage medium is much slower than ram. There was an experimental system
>called Juice that stored a compressed representation of a program and loaded the
>compressed file and managed to compile and optimize the program faster than the
>system could load the precompiled native program. Hard disks are really slow
>compared with most other computer subsystems. So in short,
>compression/decompression might even make sense in a speed perspective (under
>the right circumstances).


This is already true.  Except for the fastest SCSI drives around, using the
compressed files actually will result in a faster search speed (for Crafty)
than using the non-compressed files.  Because of reduced I/O bandwidth
requirements.



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