Author: Robert Hyatt
Date: 09:00:22 01/15/02
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On January 15, 2002 at 09:35:16, Slater Wold wrote: >I know this question has been asked before, but I cannot find an answer anywhere >in the archives........ > >My computer is now SCSI. I basically have a disk subsystem of 4 36.4Gb 10k RPM >disks (in their own case because of heat). I plan on downloading all the >3/4/5/6 tablebases from Hyatt's site. > >Here is my question: > >From what I understand, TB's are faster on 10k RPM disks if they are >uncompressed. I was planning on runnings some tests with Crafty, but cannot get >those TB's to uncompress. > >How do I uncompress them? the tbdecode program will uncompress them. However, the speed advantage is almost nil because of buffering/caching... with compressed tables Crafty ends up doing less I/O which helps. It _used_ to be true that on a 400mhz xeon X 4 machine, uncompressed was faster. With my quad 700, this is not true. If your machine is not faster than the quad 400s, which would be somewhere around 1ghz on a single cpu machine, then you should try to use them uncompressed. If you have a faster processor, the decompression goes quicker and is faster than doing the extra file I/O. > >Thanks to those who take the time to answer the same question over and over. :)
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