[Xapian-devel] Profiling InL2Weight and it's output

[Aarsh Shah]

Hi ,

As the first part of my patch, I profiled the search example given in
xapian-core/examples by changing the weighting scheme to InL2Weight.
Surprisingly, get_sumpart() only used 0.01% of the time .:)  I have
attached the screenshorts of various kinds of information I gathered
including :-

-> Drilling down to the line level of any function in a particular source
file.
-> Getting a list of all functions which call a given function.
-> Getting a nice call graph which shows which function gets called by
whom, how many times it gets called and the percentage of time spent
executing it.
-> Also, you can group the profiled output by source file level, function
level etc.
-> I have obtained information about the various functions of InL2 such as
clone(), init(),get_sumpart() etc.

Please do let me know if more clarifications or detail is required. As the
second part of my patch, I'll send in a sample timed weighting test along
with a graph drawn by matplotlib.

-Regards
-Aarsh
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