[Python-Dev] bdb.py trace C implementation?
david.christian at gmail.com
Wed Apr 1 23:49:31 CEST 2009
I've recently written a C version of the trace function used in
figleaf (the coverage tool written by Titus). After a few rewrites to
add in caching, etc, it gives users a significant speedup. One person
stated that switching to the C version caused coverage to decrease
from a 442% slowdown to only a 56% slowdown.
You can see my C implementation at:
(Specific comments about the implementation welcome off-list).
I'd like to attempt something similar for bdb.py (only for the trace
function). A naive C trace function which duplicated the current
python function should speed up bdb significantly. I would initially
write the smallest part of the C implementation that I could.
Basically the tracing function would call back out to python at any
point where a line requires action.
I'd be willing to maintain the C implementation. I would be willing
to write those tests that are possible as well.
Is this something that would be likely to be accepted?
Senior Software Engineer
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