bugGNU Help Wanted - Bugs: bug #19992, very useful enhancement to gprof


bug #19992: very useful enhancement to gprof

Submitter:  None
Submitted:  Mon 28 May 2007 04:54:54 PM UTC
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Mon 28 May 2007 04:54:54 PM UTC, original submission:  

I understand gprof can, on the timer interrupt, sample the call stack as well as the program counter.

Would it be possible to have it report the fraction of time individual statements (as opposed to functions) are found on the call stack?

Example: "call main()" should be on 100% of call stack samples.

Example: if "file foo.c, line 101: call bar()" is on 50% of call stack samples, it is worth looking at that line to see if it could be replaced, for a factor of 2 speedup.

I don't think you can get this information from any of gprof's current output options.

See also:


Mike Dunlavey
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