[Python-Dev] Python Benchmarks

[M.-A. Lemburg]

Some more interesting results from comparing Python 2.4 (other) against
the current SVN snapshot (this):

Testnames                        minimum run-time        average  run-time
                                 this    other   diff    this    other
 diff
-------------------------------------------------------------------------------
           BuiltinMethodLookup:   142ms   124ms  +14.5%   151ms   134ms
 +13.1%
                 ConcatUnicode:    95ms   120ms  -20.7%   104ms   131ms
 -20.5%
               CreateInstances:   102ms    92ms  +10.0%   107ms    96ms
 +11.5%
       CreateUnicodeWithConcat:    98ms   122ms  -19.2%   103ms   129ms
 -20.1%
             DictWithFloatKeys:   128ms   149ms  -14.1%   133ms   177ms
 -24.8%
                NestedForLoops:   141ms   126ms  +11.8%   144ms   128ms
 +12.3%
           PythonFunctionCalls:   131ms   108ms  +21.5%   133ms   109ms
 +21.3%
                  SecondImport:   135ms   114ms  +18.3%   140ms   117ms
 +20.0%
           SecondPackageImport:   136ms   122ms  +11.2%   144ms   124ms
 +16.1%
         SecondSubmoduleImport:   166ms   146ms  +13.5%   171ms   148ms
 +15.9%
       SimpleComplexArithmetic:   106ms   131ms  -19.1%   112ms   133ms
 -16.2%
              StringPredicates:   109ms    96ms  +13.6%   114ms    99ms
 +15.7%
                TryRaiseExcept:   119ms   137ms  -13.3%   122ms   140ms
 -12.6%
               UnicodeMappings:   140ms   157ms  -10.8%   141ms   160ms
 -11.4%
             UnicodePredicates:   111ms    98ms  +12.9%   115ms   100ms
 +15.3%
                UnicodeSlicing:   101ms   114ms  -11.2%   108ms   116ms
  -6.7%


It appears as if the import mechanism took a hit between the
versions.

The NFS sprint results are also visible.

A little disturbing is the slow-down for Python function calls
and the built-in method lookup. Did anything change in these parts
of the interpreter ?


This is the machine I used for running the pybench:
    Timer:  time.time
    Machine Details:
       Platform ID:  Linux-2.6.8-24.19-default-x86_64-with-SuSE-9.2-x86-64
       Processor:    x86_64

-- 
Marc-Andre Lemburg
eGenix.com

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