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Altera_Forum's avatar
Altera_Forum
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19 years ago

Performance Counter offset

Hi, i have a question about the PERFORMANCE COUNTER component. I have the following code to measure the overhead from starting/stoping the counter: PERF_BEGIN (PERFORMANCE_COUNTER_BASE, 1);...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I have a long program function in between the beigin and end. I also tried a smaller function which give 821 clks on the performance counter and it is always the same result. however when I put a bigger function, the result is different. I even have no data cache in SPOC CPU. where could be the errors?