Hello All,
I'm trying to profile a Python XML program, but
getting confused because of the results. It basically
traverses an XML file. The gprof profiling results are
as follows:
% Time Self Seconds Calls Name
34.8 0.63 _moncount
10.5 0.19 mcount
10.5 0.19 20,427 _PyEval_EvalFrame
3.9 0.07 275,249 _lookdict_string
...
0.0 0.00 11,753 __PyString_Eq
As I understand, _moncount and mcount are related with
gprof and _PyEval_EvalFrame is the main interpreter
loop. It seems this simple program spends a lot of
time in the interpreter loop. I thought a program
which handles XML would spend a lot of time on string
processing, i.e. string matching. In this case, it
spends just a little time on _lookdict_string, which
does not even do string matching. However, the string
matching function (__PyString_Eq) takes negligible
time. How could this be possible? How does it achieve
XML processing without exact string matching?
Thank you for your help!
Dave
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