Stackless 1.01 Homepage

Mon Jan 24 07:03:26 EST 2000

In article <388BE68E.B26985CA at tismer.com>, Christian Tismer <tismer at tismer.com> writes

I'm very impressed. here are the pybench timing differences (absolute and expressed as % of
original python) for my 333Mhz win32 machine. here negative is bad for stackless, positive is
good. My only disappointment is that Zope wouldn't start up.

Tests:                   per run  per op.     oh  per run  per op.  oh  
BuiltinFunctionCalls:    -2.03ms  -0.02us 0.38ms  -0.45%ms -0.56%us 31.40%ms
BuiltinMethodLookup:     92.94ms  0.18us  0.91ms  18.43%ms 18.75%us 32.85%ms
ConcatStrings:           45.03ms  0.3us   0.66ms  6.74%ms  6.73%us  7.23%ms
CreateInstances:         -56.32ms -1.34us 0.74ms  -7.84%ms -7.84%us 30.08%ms
CreateStringsWithConcat: 7.93ms   0.04us  1.04ms  1.70%ms  1.72%us  32.91%ms
DictCreation:            30.65ms  0.2us   0.77ms  5.31%ms  5.19%us  32.35%ms
ForLoops:                193.48ms 19.35us 0.1 ms  30.67%ms 30.67%us 16.39%ms
IfThenElse:              98.93ms  0.14us  1.93ms  16.94%ms 16.09%us 32.66%ms
ListSlicing:             2.75ms   0.79us  -0.03ms 0.50%ms  0.50%us  -3.26%ms
NestedForLoops:          92.3ms   0.26us  0ms     24.95%ms 24.53%us 0.00%ms
NormalClassAttribute:    114.04ms 0.19us  1.28ms  22.48%ms 22.35%us 32.24%ms
NormalInstanceAttribute: 117.29ms 0.2us   1.29ms  23.72%ms 24.39%us 32.33%ms
PythonFunctionCalls:     -5.96ms  -0.04us 0.72ms  -1.11%ms -1.23%us 29.51%ms
PythonMethodCalls:       26.22ms  0.35us  0.26ms  6.08%ms  6.09%us  30.59%ms
Recursion:               -34.18ms -2.74us 0.64ms  -8.00%ms -8.01%us 32.16%ms
SecondImport:            -54.01ms -2.16us 0.28ms  -7.68%ms -7.68%us 34.57%ms
SecondPackageImport:     -45.16ms -1.81us 0.25ms  -6.35%ms -6.36%us 30.86%ms
SecondSubmoduleImport:   -53.17ms -2.13us 0.26ms  -6.47%ms -6.48%us 32.10%ms
SimpleComplexArithmetic: 13.27ms  0.06us  0.5 ms  2.36%ms  2.35%us  31.25%ms
SimpleDictManipulation:  36.49ms  0.12us  0.64ms  8.03%ms  7.89%us  32.16%ms
SimpleFloatArithmetic:   25.87ms  0.05us  1.28ms  5.86%ms  6.25%us  32.41%ms
SimpleIntFloatArithmetic:45.92ms  0.07us  1.55ms  10.55%ms 10.61%us 32.77%ms
SimpleIntegerArithmetic: 46.71ms  0.07us  1.53ms  10.74%ms 10.61%us 32.28%ms
SimpleListManipulation:  47.47ms  0.17us  0.75ms  9.37%ms  9.04%us  31.25%ms
SimpleLongArithmetic:    9.55ms   0.06us  0.37ms  2.20%ms  2.29%us  30.58%ms
SmallLists:              4.68ms   0.02us  1.14ms  0.57%ms  0.62%us  17.09%ms
SmallTuples:             -10.95ms -0.05us 1.02ms  -1.85%ms -2.02%us 32.28%ms
SpecialClassAttribute:   122.76ms 0.21us  1.28ms  24.24%ms 25.00%us 32.24%ms
SpecialInstanceAttribute:120.81ms 0.2us   1.29ms  21.62%ms 21.51%us 32.49%ms
StringSlicing:           -32.27ms -0.19us 1.33ms  -6.11%ms -6.29%us 28.60%ms
TryExcept:               166.99ms 0.11us  2.6 ms  19.57%ms 19.30%us 33.16%ms
TryRaiseExcept:          -34.71ms -2.32us 0.74ms  -5.89%ms -5.91%us 30.71%ms
TupleSlicing:            -124.35ms-1.18us 0.04ms  -21.64%ms-21.57%us4.04%ms
Average Round Time       1580.24ms                   7.73%ms             

Zope failure traceback
Traceback (innermost last):
  File "C:\Python\devel\Zope\z2.py", line 479, in ?
    exec "import "+MODULE in {}
  File "<string>", line 1, in ?
  File "C:\Python\devel\Zope\lib\python\Zope\__init__.py", line 135, in ?
    Globals.VersionNameName)
  File "C:\Python\devel\Zope\lib\python\ZODB\ZApplication.py", line 101, in __init__
    root=conn.root()
AttributeError: 'None' object has no attribute 'root'
C:\Python\devel\Zope>

>"Why should I care about this, isn't my Python fine"?
>
>If you know what Generators, Coroutines and Continuations
>are about and want to have them at your fingertips,
>this is the real thing for you.
>
>If not, how about speed?
>About 5 percent faster, binary compatible as a drop-in
>replacement for your python15.dll, unlimited recursion,
>why not give it a try? Just click on the installer :-)
>
>Stackless Python 1.01 with Continuations 0.6
>can now be downloaded from a web page:
>
>http://www.tismer.com/research/stackless/
>
>Fact sheet, links to documentation, source and
>binaries can be found there.
>
>Source and binary distribution have been split.
>The Windows binaries come with a Wise installer.
>
>SLP has been successfully compiled on Solaris (Thanks to Jeff
>Collins). It will be used on PalmIII, to solve the 4k stack problem.
>
>Version 1.01 is a small clean-up for non-Windows platforms.
>
><P><A HREF="http://www.tismer.com/research/stackless/">Stackless
>Python 1.01 + Continuations 0.6</A> - a version of Python 1.5.2 that
>does not need space on the C stack, and first-class callable
>continuation objects for Python.  (20-Jan-2000)
>
>Christian Tismer
>Mission Impossible 5oftware Team
>

-- 
Robin Becker