[Patches] [ python-Patches-1685986 ] Method cache

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Patches item #1685986, was opened at 2007-03-22 13:47
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Category: Core (C code)
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Armin Rigo (arigo)
Assigned to: Nobody/Anonymous (nobody)
Summary: Method cache

Initial Comment:
This is a port of PyPy's method cache optimization.  It gives a very good speed-up to PyPy, and it is simple enough to be attempted on CPython.

The patch is against Python 2.4, which is the version I still use; I've applied the patch on the system-wide Pythons of a couple of machines a few days ago and haven't had any problem since.  It gives a consistent 20+% of speed-up on all applications and benchmarks I tried, and up to 36% in extreme OO examples like the "richards" benchmark.

The patch needs to be ported to the HEAD, and it needs some extra careful review.  I'm a bit too busy right now to do any of these but I'll eventually come back to it if nobody else does.


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