Slow iteration times with 23.7 - Page 2

Xyzzy · 2003-10-22, 11:21

That was a PERFECT explanation!

(I haven't seen any performance drop running 1 instance of Prime95 on a HT CPU... No program is 100% optimised so there are always a few cycles left over... I figure those few extra cycles can be put to use for general OS usage so the main Prime95 instance continues to run 100%!)

Jim · 2003-10-22, 13:59

Great email, explains it well.

Turned HT off and my iteration times change slightly, from 0.051 to 0.050

(Sorry about the question, i thought I had already turned HT off after reading the previous answers)

Jim

clowns789 · 2003-10-22, 22:50

Maybe you could use affinity or something on hyperthreading. I don't know much about it but it seems kinda like dual processor.

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2003-10-22, 11:21	#12
Xyzzy "Mike" Aug 2002 2·23·179 Posts	That was a PERFECT explanation! (I haven't seen any performance drop running 1 instance of Prime95 on a HT CPU... No program is 100% optimised so there are always a few cycles left over... I figure those few extra cycles can be put to use for general OS usage so the main Prime95 instance continues to run 100%!)

2003-10-22, 13:59	#13
Jim Feb 2003 9₁₆ Posts	Great email, explains it well. Turned HT off and my iteration times change slightly, from 0.051 to 0.050 (Sorry about the question, i thought I had already turned HT off after reading the previous answers) Jim

2003-10-22, 22:50	#14
clowns789 Jun 2003 The Computer 2³×7² Posts	Maybe you could use affinity or something on hyperthreading. I don't know much about it but it seems kinda like dual processor.