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performance counter

Note: This was originally posted on 11th February 2013 at http://forums.arm.com

I'm porting an application to an ARM® Cortex-A9 based system running Ubuntu 12.04 and I need a way to query a performance counter. On Windows we used the function QueryPerformanceCounter() and on Intel-based Linux we used assembly code w/ the rdtsc command. Is there a similar command or some assembly language that I can use to achieve this capability on an ARM system?

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Martin Weidmann over 12 years ago

Note: This was originally posted on 12th February 2013 at http://forums.arm.com

There are a couple of different APIs. You could try oprofile (http://oprofile.sourceforge.net/) or perf (https://perf.wiki.kernel.org/index.php/Main_Page).
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Martin Weidmann over 12 years ago

Note: This was originally posted on 12th February 2013 at http://forums.arm.com

There are a couple of different APIs. You could try oprofile (http://oprofile.sourceforge.net/) or perf (https://perf.wiki.kernel.org/index.php/Main_Page).
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