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sharshera
Beginner
45 Views

Interpreting missrate per line in source files.

vtlec gets me L2 cache miss rate etc.

What I have problems with now is that I want to know which elements of our datastructures cause the most 2nd level cache misses?

View source shows misses per line as 0.04%, 0.11%, etc., the whole function has an 83% miss-rate, the function is called a gazzillion times.

Are these perline misses, the miss-rate relative to one call of the function only if not how to interpret these tiny little #s ?

Thanks alot guy for the wonderful tool and for your help.

Hameed.
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1 Reply
David_A_Intel1
Employee
45 Views

Hi Hameed:
Try right-clicking in any of the event columns of the source viewand selecting the menu item "View Events As...". Here you can change it to "% of Activity" or "Samples"and this should match the numbers you were looking at in the other view. Samples will be better for comparison reasons, since calculation of percentages can highlight rounding errors.
This is a known issue and may be resolved in a future release.
Let me know if that helps.

Message Edited by DaveA on 07-21-2005 02:34 PM

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