I don't think this is a GC case. I think this is a case of loops with only a few iterations aren't fast enough.
Alex On Tue, Apr 30, 2013 at 3:13 PM, Maciej Fijalkowski <fij...@gmail.com>wrote: > This is a kind of example where our GC card marking does not quite > work. I think the improve-rdict branch should improve this kind of > code quite a bit (but I still have to finish it) > > On Tue, Apr 30, 2013 at 6:51 PM, Armin Rigo <ar...@tunes.org> wrote: > > Hi, > > > > On Tue, Apr 30, 2013 at 5:26 AM, cat street <gam...@gmail.com> wrote: > >> You can test this code: > >> (...) > > > > For no good reason it seems that on this example CPython is quite a > > bit faster on Linux64 than on Linux32. PyPy is also a bit faster on > > Linux64 but not by such a large margin. In my tests (PyPy vs CPython) > > it ends up the same on Linux32, and on Linux64 PyPy is a bit slower > > (20%?). I think it's good enough given the type of code (completely > > unoptimizable as far as I can tell, unless we go for "we can kill the > > whole loop in this benchmark", which is usually a bit pointless in > > real code). If others want to look in detail at JIT traces, feel free > > to. > > > > > > A bientôt, > > > > Armin. > > _______________________________________________ > > pypy-dev mailing list > > pypy-dev@python.org > > http://mail.python.org/mailman/listinfo/pypy-dev > _______________________________________________ > pypy-dev mailing list > pypy-dev@python.org > http://mail.python.org/mailman/listinfo/pypy-dev > -- "I disapprove of what you say, but I will defend to the death your right to say it." -- Evelyn Beatrice Hall (summarizing Voltaire) "The people's good is the highest law." -- Cicero GPG Key fingerprint: 125F 5C67 DFE9 4084
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