On Sat, 13 Sep 2008 08:03:50 -0400, "A.M. Kuchling" <[EMAIL PROTECTED]> wrote:
Three weeks ago, Antoine Pitrou posted the pybench results
for 2.6 trunk:
http://mail.python.org/pipermail/python-dev/2008-August/081951.html
The big discovery in those results were TryExcept being 48% slower,
but there was a patch in the bug tracker to improve things. I've
re-run the tests to check the results.
Disclaimer: these results are probably not directly comparable.
Antoine was using a "32-bit Linux installation on an Athlon 3600+ X2";
I'm on a Macbook.
Good news: TryExcept is now only 10% slower than 2.5, not 48%.
Bad news: the big slowdowns are:
CompareFloats: 117ms 98ms +19.2% 118ms 99ms +19.0%
CompareIntegers: 110ms 104ms +5.6% 110ms 105ms +4.9%
DictWithStringKeys: 118ms 105ms +12.8% 133ms 108ms +22.7%
NestedForLoops: 125ms 116ms +7.7% 127ms 118ms +8.0%
Recursion: 193ms 159ms +21.5% 197ms 163ms +20.8%
SecondImport: 139ms 129ms +8.4% 143ms 130ms +9.9%
SecondPackageImport: 150ms 139ms +8.6% 152ms 140ms +8.1%
SecondSubmoduleImport: 211ms 191ms +10.5% 214ms 195ms +9.4%
SimpleComplexArithmetic: 130ms 119ms +9.4% 131ms 120ms +9.2%
I see similar results for some of these. The complete results from a run
on an AMD Athlon(tm) 64 Processor 3200+ are attached.
Jean-Paul
-------------------------------------------------------------------------------
PYBENCH 2.0
-------------------------------------------------------------------------------
* using CPython 2.6rc1 (trunk:66421M, Sep 12 2008, 21:05:52) [GCC 4.2.3 (Ubuntu
4.2.3-2ubuntu7)]
* disabled garbage collection
* system check interval set to maximum: 2147483647
* using timer: time.time
-------------------------------------------------------------------------------
Benchmark: p26.pybench
-------------------------------------------------------------------------------
Rounds: 10
Warp: 10
Timer: time.time
Machine Details:
Platform ID: Linux-2.6.24-19-generic-i686-with-debian-lenny-sid
Processor:
Python:
Implementation: CPython
Executable: /home/exarkun/Projects/python/trunk//python
Version: 2.6.0
Compiler: GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)
Bits: 32bit
Build: Sep 12 2008 21:05:52 (#trunk:66421M)
Unicode: UCS2
-------------------------------------------------------------------------------
Comparing with: p25.pybench
-------------------------------------------------------------------------------
Rounds: 10
Warp: 10
Timer: time.time
Machine Details:
Platform ID: Linux-2.6.24-19-generic-i686-with-debian-lenny-sid
Processor:
Python:
Implementation: n/a
Executable:
/home/exarkun/Projects/python/branches/release25-maint/python
Version: 2.5.3a0
Compiler: GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)
Bits: 32bit
Build: Sep 13 2008 09:32:41 (#release25-maint:66444)
Unicode: UCS2
Test minimum run-time average run-time
this other diff this other diff
-------------------------------------------------------------------------------
BuiltinFunctionCalls: 178ms 187ms -4.5% 184ms 193ms -4.6%
BuiltinMethodLookup: 151ms 165ms -8.5% 155ms 167ms -7.2%
CompareFloats: 150ms 146ms +2.9% 153ms 150ms +1.9%
CompareFloatsIntegers: 143ms 147ms -2.8% 150ms 150ms +0.4%
CompareIntegers: 180ms 182ms -1.0% 182ms 190ms -4.3%
CompareInternedStrings: 159ms 160ms -1.1% 163ms 166ms -2.0%
CompareLongs: 135ms 136ms -0.7% 136ms 139ms -1.5%
CompareStrings: 142ms 150ms -5.4% 146ms 153ms -4.5%
CompareUnicode: 148ms 135ms +9.6% 151ms 137ms +10.6%
ComplexPythonFunctionCalls: 155ms 226ms -31.4% 158ms 229ms -30.9%
ConcatStrings: 197ms 203ms -2.8% 202ms 215ms -6.4%
ConcatUnicode: 179ms 168ms +6.6% 182ms 184ms -0.8%
CreateInstances: 159ms 157ms +1.4% 162ms 161ms +0.7%
CreateNewInstances: 119ms 141ms -15.4% 121ms 144ms -16.2%
CreateStringsWithConcat: 189ms 173ms +9.3% 195ms 177ms +10.2%
CreateUnicodeWithConcat: 116ms 113ms +2.3% 118ms 115ms +2.6%
DictCreation: 109ms 140ms -22.2% 112ms 143ms -21.8%
DictWithFloatKeys: 202ms 199ms +1.6% 208ms 204ms +1.6%
DictWithIntegerKeys: 158ms 156ms +1.0% 161ms 159ms +1.1%
DictWithStringKeys: 147ms 148ms -0.6% 158ms 151ms +4.9%
ForLoops: 156ms 155ms +1.0% 160ms 157ms +1.9%
IfThenElse: 149ms 151ms -1.3% 152ms 154ms -0.9%
ListSlicing: 104ms 104ms -0.3% 108ms 107ms +0.6%
NestedForLoops: 176ms 174ms +0.8% 180ms 177ms +1.8%
NormalClassAttribute: 160ms 161ms -0.8% 165ms 164ms +0.3%
NormalInstanceAttribute: 142ms 140ms +1.2% 145ms 142ms +1.5%
PythonFunctionCalls: 152ms 139ms +8.7% 153ms 142ms +7.8%
PythonMethodCalls: 166ms 167ms -0.7% 169ms 171ms -0.8%
Recursion: 239ms 210ms +13.9% 243ms 213ms +13.9%
SecondImport: 113ms 107ms +4.9% 115ms 110ms +4.3%
SecondPackageImport: 115ms 109ms +5.7% 118ms 112ms +4.8%
SecondSubmoduleImport: 143ms 141ms +1.6% 147ms 145ms +1.5%
SimpleComplexArithmetic: 146ms 136ms +7.0% 148ms 140ms +5.8%
SimpleDictManipulation: 158ms 158ms -0.2% 161ms 162ms -0.5%
SimpleFloatArithmetic: 145ms 144ms +0.6% 148ms 148ms +0.1%
SimpleIntFloatArithmetic: 130ms 130ms -0.5% 133ms 134ms -0.8%
SimpleIntegerArithmetic: 131ms 131ms +0.1% 134ms 134ms -0.1%
SimpleListManipulation: 137ms 137ms +0.0% 140ms 140ms -0.2%
SimpleLongArithmetic: 141ms 137ms +2.3% 144ms 142ms +1.7%
SmallLists: 138ms 140ms -1.6% 140ms 142ms -1.3%
SmallTuples: 134ms 139ms -3.3% 138ms 142ms -2.3%
SpecialClassAttribute: 157ms 161ms -2.3% 161ms 165ms -2.7%
SpecialInstanceAttribute: 183ms 178ms +2.6% 187ms 182ms +3.1%
StringMappings: 156ms 156ms -0.3% 160ms 160ms +0.3%
StringPredicates: 148ms 163ms -9.0% 151ms 166ms -9.1%
StringSlicing: 146ms 147ms -0.8% 148ms 150ms -0.8%
TryExcept: 161ms 162ms -0.6% 165ms 167ms -1.2%
TryFinally: 139ms 148ms -6.2% 144ms 150ms -3.7%
TryRaiseExcept: 115ms 121ms -4.6% 117ms 123ms -4.2%
TupleSlicing: 138ms 133ms +3.6% 140ms 137ms +2.4%
UnicodeMappings: 196ms 183ms +6.8% 203ms 188ms +8.1%
UnicodePredicates: 149ms 160ms -6.9% 152ms 166ms -8.6%
UnicodeProperties: 136ms 142ms -4.0% 140ms 146ms -3.9%
UnicodeSlicing: 143ms 144ms -0.9% 146ms 153ms -4.4%
WithFinally: 167ms 197ms -15.2% 171ms 201ms -14.5%
WithRaiseExcept: 136ms 160ms -15.0% 138ms 165ms -16.0%
-------------------------------------------------------------------------------
Totals: 8459ms 8599ms -1.6% 8665ms 8822ms -1.8%
(this=p26.pybench, other=p25.pybench)
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