[GRASS-dev] v.what.rast speedup
hamish_nospam at yahoo.com
Mon Oct 22 22:23:53 EDT 2007
I have run valgrind's callgrind profiler for v.what.rast.
results + screen dumps are here:
to look at it in detail install kcachegrind and graphviz, then just
(after un-gzipping the callgrind output files)
I added what I did as an example on the wiki debugging page:
quick summary of results:
99.5% of the cost was taken by the dbf process, not v.what.rast
(watching 'top' shows you the same)
In the dbf process (#15561) about 1/3rd was taken by G_debug(),
and about 1/2 was taken by G_debug() + G_strcasecmp()
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