Architectures and Processors forum Why I can't find the performance monitoring event for all Instructions count? How to get instructions event for my ARMV7 Cortex-A9 by PMU?

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Why I can't find the performance monitoring event for all Instructions count? How to get instructions event for my ARMV7 Cortex-A9 by PMU?

hello_arm over 10 years ago

Can anyone help?

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0 Martin Weidmann over 10 years ago in reply to hello_arm

What kind of target are you using?
The Fast Models don't fully model the PMU, and most of the events aren't functional. Meaning that you get counts of zero.
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0 Martin Weidmann over 10 years ago in reply to hello_arm

What kind of target are you using?
The Fast Models don't fully model the PMU, and most of the events aren't functional. Meaning that you get counts of zero.
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0 hello_arm over 10 years ago in reply to Martin Weidmann

I am using for collecting CPIs. How to read the counter event "SWINCR" ,is there any different with other counter events? And the Armv7 manual says that "PMSWINC is a write-only register
".Dose it mean that I can't read it?
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