[ python-Bugs-1001150 ] hotspot profiler does not work correctly on P4 CPUs with HT

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Sat Jul 31 12:50:39 CEST 2004


Bugs item #1001150, was opened at 2004-07-31 12:50
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1001150&group_id=5470

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.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1001150&group_id=5470


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