[Python-Dev] Memory benchmarking?

[M.-A. Lemburg]

On 2007-11-29 11:52, Titus Brown wrote:
> Hi all,
> 
> is there a good, or standard memory benchmarking system for Python?
> pybench doesn't return significantly different results when Python 2.6
> is compiled with pymalloc and without pymalloc.  Thinking on it, I'm not
> too surprised -- pybench probably benchmarks a lot of stuff -- but some
> guidance on how/whether to benchmark different memory allocation schemes
> would be welcome.

pybench focuses on runtime performance, not memory usage. It's
way of creating and deleting objects is also highly non-standard
when compared to typical use of Python in real life applications.

It's also rather difficult to benchmark memory allocation, since
most implementations work with some sort of pre-allocation,
buffer pools or free lists.

If you want to use a similar approach as pybench does, ie. benchmark
small parts of the interpreter instead of generating some grand
total, then you'd probably have to do this by spawning a separate
process per test.

> refs:
> 
> http://code.google.com/p/google-highly-open-participation-psf/issues/detail?id=105&colspec=ID%20Status%20Summary
> 
> http://evanjones.ca/memoryallocator/
> 
> http://www.advogato.org/person/wingo/diary/225.html

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