Re: program runs almost twice as slow on 2 CPU machine when 1 CPU

From: "Arnaud Debaene" <adebaene@xxxxxxxxxxxxxxxx>
Date: Tue, 5 Dec 2006 21:00:45 +0100

"anton bassov" <soviet_bloke@xxxxxxxxxxx> a écrit dans le message de news:
1165297825.145544.236620@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Use Process Explorer (www.sysinternals.com) to see who is taking
processor
time. I would suspect interrupts...

Actually, it would be a good idea for you to learn what interrupts are

Ah... I see that Mr Anton is always sooooooo respectfull and polite.... Nice

When I said "interrupts", it was a generic term meaning both ISRs and
DPCs.... It was probably a bold guess of my part in the case of the OP, but
I can show you a poorly written device driver that, when talking with it's
hardware, take a significant amount of processor power in those kernel mode
routines....

Arnaud
MVP - VC

.

Follow-Ups:
- Re: program runs almost twice as slow on 2 CPU machine when 1 CPU
  - From: anton bassov

References:
- Re: program runs almost twice as slow on 2 CPU machine when 1 CPU is u
  - From: Michael K. O'Neill
- Re: program runs almost twice as slow on 2 CPU machine when 1 CPU
  - From: Arnaud Debaene
- Re: program runs almost twice as slow on 2 CPU machine when 1 CPU
  - From: anton bassov

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