[pypy-dev] Feature-comparatives benchmarks
arigo at tunes.org
Sat Nov 5 10:16:54 CET 2005
Even though it is short, I think that the draft-low-level-encapsulation
would look complete enough if it had, for each described aspect:
* a link to the doc (I'll add them);
* some concrete benchmarks, in an "Experimental results" section,
to see what would be the performance/memory impact of enabling each
feature or leaving it out of the compiled PyPy.
As far as I know our benchmark results are not nicely regrouped at some
place, so I suggest we collect them on this mailing list. We need:
* Stacklessness: what are the most up-to-date results?
* Multiple Interpreters: I guess no one tried so far to compile in a
mode where the 'space' variables don't go away. Let's.
* Concurrency: not much data here apart from the massive unexplained
overhead of enabling threads.
* Memory Management: refcounting is veeery slow, which only shows that
we could do much better there given sufficient efforts...
* Evaluation Strategy: the thunk object space. Overhead?
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