[progress Communities] [progress Openedge Abl] Forum Post: Re: Do Loop And Cpu Frequency

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DimitriG4

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Modern CPUs are too smart. Back i the MASM 5.1 days , running on a 386 I've used a NOP loop to measure CPU frequency. It was "pretty accurate" running on 386 and 486 CPUs. Once Pentiums came out, the test went nuts . Since you are into execution speed testing territory, if you are running it on hardware with power management (ie laptop running windows) try your test using the High performance power plan. Depending on the actual hardware the CPU doesn't always get a chance to "rev up" to full speed.

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