How do I find which lines in my program were executed the most times?
gprof -l -C objfile | sort -k 3 -n -r
This listing will show you the lines in your code executed most often, but not necessarily those that consumed the most time.
How do I find which lines in my program called a particular function?
gprof -l
' and lookup the function in the call graph.
The callers will be broken down by function and line number.
How do I analyze a program that runs for less than a second?
for i in `seq 1 100`; do fastprog mv gmon.out gmon.out.$i done gprof -s fastprog gmon.out.* gprof fastprog gmon.sum
If your program is completely deterministic, all the call counts will be simple multiples of 100 (i.e. a function called once in each run will appear with a call count of 100).
Packaging copyright © 1988-2000 OAR Corporation Context copyright by each document's author. See Free Software Foundation for information.