[net.micro.pc] Hard Disk Caches

toms@oakhill.UUCP (Thomas Spohrer) (06/19/86)

     I am interested in any information about hard disk caches.

  1.)  What kind of performance improvements are posible?
  2.)  Recomendations on different programs that are available
             (Public domain or Commercial).
  3.)  What algorithms are used (LRU would seem the most useful
       but may not be the easiest to implement) ?


=========================================================================
Motorola Semiconductor                     Tom Spohrer
Austin, Texas              {ctvac,seismo,gatech,ihnp4}!ut-sally!oakhill!toms

coulter@hplabsc.UUCP (Michael Coulter) (06/25/86)

Disc caching is wonderful!  The software is often included with things
like memory expansion boards.  For a commercial program that will
run on PC's in general, I've heard good things about LIGHTNING (TM)
from Personal Computer Support Group,  11035 Harry Hines Blvd., #206,
Dallas, TX 75229.  It seems to me that their price for the non copy 
protected version is a bit stiff.  There are also programs available
in the public domain.  I have sent the one that I use to the author
of the base note whom I have asked to re-post it if nothing better
comes along.

I have found the performance increase for .bat files to be dramatic.

-- Michael Coulter   ...hplabs!coulter

coulter@hplabsc.UUCP (Michael Coulter) (06/25/86)

Attached is a uuencoded version of an MSDOS .ARC file, hdcache.arc.

-- Michael Coulter   ...ucbvax!hplabs!coulter

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end

coulter@hplabsc.UUCP (Michael Coulter) (06/25/86)

There seems to be a problem with the hdcache.arc file I posted in
a previous response.  I have reposted hdcache.arc under a separate 
note titled:

		Reposting of hdcache.arc


-- Michael Coulter			...ucbvax!hplabs!coulter