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Make the pointer array static to improve cache behavior and reduce calls

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2006-10-25  Soren Sandmann <sandmann@daimi.au.dk>

        * profile.c (add_trace_to_tree): Make the pointer array static to
        improve cache behavior and reduce calls to malloc().

        * process.c (lookup_kernel_symbol): Remove obsolete comment.
This commit is contained in:
Soren Sandmann
2006-10-26 05:13:16 +00:00
committed by Søren Sandmann Pedersen
parent e2150fc188
commit d78e744422
4 changed files with 17 additions and 15 deletions
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5
TODO
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@ -433,7 +433,10 @@ http://www.linuxbase.org/spec/booksets/LSB-Embedded/LSB-Embedded/ehframe.html
- Have kernel module report the file the address was found in
Should avoid a lot of potential broken/raciness with dlopen etc.
Probably better to send a list of maps with each trace.
Probably better to send a list of maps with each trace. Which
shouldn't really be that expensive. We already walk the list of
maps in process_ensure_map() on every trace. And we can do hashing
if it turns out to be a problem.
- Figure out how Google's pprof script works. Then add real call graph
drawing. (google's script is really simple; uses dot from graphviz).