[pypy-dev] djangobench performance

William ML Leslie william.leslie.ttg at gmail.com
Thu Sep 1 09:23:52 CEST 2011

On 1 September 2011 15:29, Fenn Bailey <fenn.bailey at gmail.com> wrote:
> The results were a little surprising (and not in a good way):
> http://pastie.org/2463906
> Any ideas as to why the performance drop-off would be so significant?

N = 200 means most of the benchmarks probably won't even JIT, so that
might be a start.  The threshold in the released pypy is N = 1000.

But even without JIT, 20+ fold slowdowns are very interesting:
10n_render, query_all and query_raw.

I wonder if anyone has benchmarked sqlite under pypy - that would have
the most dramatic effect here.

William Leslie

More information about the pypy-dev mailing list