[Pythonmac-SIG] One last thing on the slow shell python

[Alexandre Parenteau]

Victory !

I hope I found something interesting about Python being slow when
opening-up.

I noticed that if I do (prior to call PyMacInitialize) :

    PyMacSchedParams scp;
    
    PyMac_GetSchedParams(&scp);
    scp.process_events = 0;
    PyMac_SetSchedParams(&scp);

Then Python loads much faster.

I suspect GUSI to yield too much time to the system due to the multiple
calls to WaitNextEvent during start-up.

Could someone verify this statement and elaborate ? Jack ?

Alex.

> 
> Recently, "David Pennell" <dpennell@guardnet.com> said:
>> I created a tcsh to call pyton -c 'pass' 100 times and 1000 times.
>> 
>> Over the control of a simple $I = 999 line, the python -c 'pass' line
>> took 1.7 seconds, each execution - 100 executions took almost 3 minutes.
> 
> Apple has a very nice new document (released last week, I think) on
> performance tuning OSX applications. There's an awesome set of tools
> available to do I/O call measurements, malloc traces and many more.
> 
> Maybe someone can grab this and run the various tools on Python to see
> where it's losing the startup time?
> --
> Jack Jansen             | ++++ stop the execution of Mumia Abu-Jamal ++++
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