C performance measure

Question

I'm looking for a measure performance tool for C (I'm using MinGW windows toolchain) that gives me some results like:

Occupied memory by a variable;
Cycles to run the program/a function;
Spent time on a function.

Thanks

score 2 · Accepted Answer · edited May 23 '17 at 12:12

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Google Perftools is multi-platform: http://code.google.com/p/google-perftools/

GCC has profiling as well: How to use profile guided optimizations in g++?

edited May 23 '17 at 12:12

Community

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answered May 19 '11 at 18:16

Chris Morgan

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score 0 · Answer 2 · answered May 20 '11 at 12:36

You can use gprof with is shipped with GCC. Here are some examples.

You'll find more about that in the GCC documentation. Just remember that you must use the -pg option for both compilation and link.

However, I got that working, but only on small software. On the bigger one I work on, I only got empty timing, and couldn't find the cause of that. But maybe you won't have the same problem...

score 0 · Answer 3 · answered Jun 10 '11 at 08:18

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Usually when gprof does not give you results it is because it is a multithread application. gprof does not support this kind of apps.

answered Jun 10 '11 at 08:18

Fermin

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C performance measure

3 Answers3