[DUG] XP, hyperthreading and speed

[Leigh Wanstead]

Any article related to what you said?

TIA

Regards
Leigh
  -----Original Message-----
  From: delphi-bounces at delphi.org.nz [mailto:delphi-bounces at delphi.org.nz]On
Behalf Of Kyley Harris
  Sent: Monday, November 05, 2007 4:24 PM
  To: NZ Borland Developers Group - Delphi List
  Subject: Re: [DUG] XP, hyperthreading and speed


  Its been proven long ago that Hyperthreading slows down a delphi multi
threaded app.. Any Server app I have on a hyperthreaded machine can go 10
times faster if I force it to use only 1 cpu from the task manager.
something to do with Context switching in the app.. I don't know how this
would be under the new dual cores.. that was P4 architecture.
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