As usual, the results you're reporting are quite different than what I
see on my machine. I'd like to think that my machine is more normal
than yours, but I expect we're both oddballs <0.2 wink>. I see
basically the same slowdowns that you see, but the amount of the
slowdown is quite a bit smaller.
I compared current CVS with 1.5.2, both compiled with GCC 2.95.3 and
the -O3 flag; ran pybench of an 800MHz P3 with 256MB RAM running Linux
2.2.17.
Python 1.5.2:
Pystone(1.1) time for 10000 passes = 0.85
This machine benchmarks at 11764.7 pystones/second
Python CVS:
Pystone(1.1) time for 10000 passes = 0.94
This machine benchmarks at 10638.3 pystones/second
PYBENCH 0.9
Benchmark: cvs (rounds=10, warp=100)
Tests: per run per oper. diff *
------------------------------------------------------------------------
BuiltinFunctionCalls: 41.85 ms 1.64 us +31.40%
CompareFloats: 39.60 ms 0.44 us +13.96%
CompareFloatsIntegers:
CompareIntegers:
CompareLongs: 39.85 ms 0.44 us +15.01%
CompareStrings:
CompareUnicode:
ConcatStrings: 48.65 ms 1.62 us +46.76%
ConcatUnicode:
CreateInstances: 75.75 ms 9.02 us +55.54%
CreateStringsWithConcat: 51.60 ms 1.29 us +62.78%
CreateUnicodeWithConcat:
DictCreation: 87.80 ms 2.93 us +115.72%
DictWithFloatKeys:
DictWithIntegerKeys:
DictWithStringKeys:
ForLoops: 63.85 ms 31.93 us -13.60%
IfThenElse:
ListSlicing:
NestedForLoops: 32.95 ms 0.66 us +10.39%
NormalClassAttribute:
NormalInstanceAttribute:
PythonFunctionCalls: 48.85 ms 1.48 us +11.78%
PythonMethodCalls: 38.95 ms 2.60 us +12.09%
Recursion:
SecondImport: 37.80 ms 7.56 us +65.79%
SecondPackageImport: 38.95 ms 7.79 us +50.68%
SecondSubmoduleImport: 49.90 ms 9.98 us +35.05%
SimpleComplexArithmetic: 58.95 ms 1.34 us +74.67%
SimpleDictManipulation:
SimpleFloatArithmetic:
SimpleIntFloatArithmetic:
SimpleIntegerArithmetic:
SimpleListManipulation: 43.65 ms 0.81 us +15.63%
SimpleLongArithmetic: 42.70 ms 1.29 us +53.32%
SmallLists: 79.15 ms 1.55 us +56.89%
SmallTuples: 66.65 ms 1.39 us +43.03%
SpecialClassAttribute:
SpecialInstanceAttribute:
StringMappings:
StringPredicates:
StringSlicing: 39.00 ms 1.11 us +28.71%
TryExcept:
TryRaiseExcept: 50.60 ms 16.87 us +27.46%
TupleSlicing: 37.90 ms 1.80 us +26.54%
UnicodeMappings:
UnicodePredicates:
UnicodeProperties:
UnicodeSlicing:
------------------------------------------------------------------------
Average round time: 3177.00 ms n/a
*) measured against: 1.5.2 (rounds=10, warp=100)
(As MAL did, I removed all the results were the difference is +/-
10%.)
i-never-do-simple-complex-arithmetic-anyway-ly yr's,
Jeremy
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