Antoine Pitrou <pit...@free.fr> added the comment:
Here is a new patch without any dispatch shortcut in ceval.c, just
optimizations in unicodeobject.c and longobject.c. Net result on pybench:
Test minimum run-time average run-time
this other diff this other
diff
-------------------------------------------------------------------------------
CompareFloats: 166ms 170ms -2.3% 169ms 174ms
-2.8%
CompareFloatsIntegers: 230ms 231ms -0.7% 233ms 231ms
+0.8%
CompareIntegers: 247ms 270ms -8.7% 248ms 272ms
-9.0%
CompareInternedStrings: 196ms 254ms -22.7% 197ms 255ms
-22.7%
CompareLongs: 143ms 158ms -9.0% 143ms 158ms
-9.3%
CompareStrings: 156ms 168ms -7.4% 157ms 169ms
-7.2%
-------------------------------------------------------------------------------
Totals: 1139ms 1252ms -9.1% 1148ms 1260ms
-8.9%
The patch seems fairly uncontroversial to me, I'll commit it soon if
there's no opposition.
Added file: http://bugs.python.org/file12341/cmps5.patch
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