[issue4194] Miserable subprocess.Popen performance

[Skip Montanaro]

Skip Montanaro <skip at pobox.com> added the comment:

Good question.  I don't think it's MacOSX-specific.  The original problem 
raised its ugly head on Solaris 10.  I don't have quite as many versions 
of Python available there, but the relative performance is still bad, 
roughly 0.05 for os.popen and 0.82 for subprocess.Popen.  Not as bad as on 
the Mac, but certainly not as good as what you saw.

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