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Questions tagged [gprof]

gprof is a GNU tool used for code profiling.

To use it you need to compile your code with gcc and the option -pg. Then execute your software; it will create a file named "gmon.out". gprof can analyze this file and provide you with performance information about the execution of your software.

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Format of parameter to display call graph for templated method with gprof?

What is the command line format to display function call graph for a method in templated class with gprof? For simple C method you would specify it like: gprof -f foo myprogram > gprof.output How do you specify method parse from the…
stefanB
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How to calculate time for a cilk_spawn

thanks for looking at the post I am benchmarking some Cilk Plus code and was looking to calculate the time required to complete a "spawn" operation. I am interested in calculating only the time required to do a spawn and not the computational time…
boffin
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g++ compilation fails when profiling enabled

I have a working program, which I want to profile. Thus, I just added a -pg switch to the Makefile. This gives thousands of repetitions of this same message: /tmp/ccOlI4CC.s:62095: Error: bad expression /tmp/ccOlI4CC.s:62095: Error: junk…
Firestorm
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random() function same values in linux (while grof ing)

When I try to generate random values for various sorting algorithm to gprof them and compare the results, I noticed the random() function was creating same values within an instance and in same order. Is there a way to get rid of it? Example I tried…
nt fury
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C: Can I make my program look to be running in 0 secs

Is there any way when I run time command with option -c on my program it show me 0 secs under user section? Is this what we'd call that the program is not CPU bound? I have a program for which I'm always getting 0.01 secs. I've done some…
Diwakar Sharma
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How to improve a function?

I have a program that counts 2 to the power 26 and the root of result number. Program's source code is contained in several files and I compiled it by makefile with -pg flag. I run it by gprof ./main and as a result I got: Each sample counts as…
krzyhub
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how to get profiling information from a Windows DLL with gprof?

I've created my DLL using -pg option (compilation and link), and managed to run its code and to call exit at some point. A file gmon.out is created, so far so good. But when I do gprof mydll.dll gmon.out no useful information is printed. When I do…
Jean-François Fabre
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