[ python-Bugs-1001150 ] hotspot profiler does not work correctly on
P4 CPUs with HT
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Sat Jul 31 15:25:11 CEST 2004
Bugs item #1001150, was opened at 2004-07-31 12:50
Message generated for change (Comment added) made by complex
You can respond by visiting:
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Category: Python Library
Group: Platform-specific
Status: Open
Resolution: None
Priority: 5
Submitted By: Viktor Ferenczi (complex)
Assigned to: Nobody/Anonymous (nobody)
Summary: hotspot profiler does not work correctly on P4 CPUs with HT
Initial Comment:
Using the hotspot module produces wrong timing data on
Intel P4 CPUs with HyperThreading (HT) support enabled.
For example:
Running tests...
..................................................
----------------------------------------------------------------------
Ran 50 tests in 1.782s
OK
Loading results...
Printing results...
24087 function calls (23727 primitive calls)
in 5333.530 CPU seconds
The 50 tests run in 1.782 seconds, but the profiler
accumulates 5333.530 seconds.
----------------------------------------------------------------------
>Comment By: Viktor Ferenczi (complex)
Date: 2004-07-31 15:25
Message:
Logged In: YES
user_id=142612
OS: WinXP Prof ENG SP1
Python: 2.3.4 final, EXE installer (binary)
----------------------------------------------------------------------
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