Performance/Analysis/Examples

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Revision as of 03:24, 30 May 2008 by ChrisCox (Talk | contribs)

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What do all those numbers mean?

Ok, you've downloaded the benchmark source, compiled and run it, and now you have a text file with a lot of numbers. How do you interpret those numbers?

You are looking at the raw numbers from each test, not a weighted average or formatted summary. Eventually, I will have a web site where you can look at the raw numbers from different compilers and platforms, as well as analysis that has broken down the raw numbers into something a little smaller and easier to digest. But that's going to take time to build (both the analysis and the web site). For now, these are engineering numbers, not marketing numbers. You can think of it as a list of times taken by different runners in a track event, not the olympic medal winners -- useful if you want to do some analysis, but not as useful if all you want to know is the winner.


Examples of analyzing benchmark results:

loop_unroll.cpp with gcc