Author: Didzis Cirulis
Date: 02:20:30 01/21/99
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On January 21, 1999 at 05:15:10, Kai Lübke wrote: >On January 21, 1999 at 01:41:18, Steven Juchnowski wrote: > >>For what ever reason, Junior5 can lose up to 70% of it's speed >>when used against other software on the same hardware. >> >>Most other programs can lose 5-50% under the same conditions. > >Since I used to play single-machine games myself in the past, I still test >programs as to how they work under these conditions. >My observations are as follows (all considerations for "permanent brain off", of >course): > >DOS programs: don't slow down others noticably, get slowed down to 70% > (not *by* 70%) by Windows programs such as Chessmaster or Nimzo 98. >Windows programs: > Chessmaster 5500/6000: slows opponent down to 75-80% > Nimzo 98: slows opponent down to 45-55% > Virtual Chess II: slows opponent down to 65-75% > Fritz 5 (16 bit): slows opponent down to 95-98% >These slowdowns are mutual, i.e. in a Nimzo vs. CM game, CM would play at about >50% and Nimzo at about 75% of its usual speed. > >Now for the 32 bit Chessbase programs (Fritz 5.32, Junior 5, very likely also >Nimzo 99), it is a different story. >They don't cause much slowdown themselves, but they are _extremely_ sensitive >towards other programs running. >I have seen Junior 5 slow down to some 3-5 Knps (!!!) when for example >Chessmaster is running at the same time (even if CM just sits there doing >nothing), the same against Nimzo 98 and Genius 5 Windows. > >The general rule is: single-machine testing with any 32 bit Chessbase program is >strongly discouraged, at least against other Windows programs (except Fritz 5 >and WinBoard which are "friendly"). > >--- >Shep Have a look to My own Computer Chess Site / Two programs on one PC http://www.konts.lv/usr/Didzis/index.html There I give a short method of how to calculate the exact timing in this situation. Didzis
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