How can I get perf to find symbols in my program

Question

When using perf report, I don\'t see any symbols for my program, instead I get output like this:

$ perf record /path/to/racket ints.rkt 10000
$ pe         


        

Answer 1

I had this problem too, I couldn't see any userspace symbol, but I saw some kernel symbols. I thought this was a symbol loading issue. After tried all the possible solutions I could find, I still couldn't get it work.

Then I faintly remember that

ulimit -u unlimited

is needed. I tried and it magically worked.

I found from this wiki that this command is needed when you use too many file descriptors.

https://perf.wiki.kernel.org/index.php/Tutorial#Troubleshooting_and_Tips

my final command was

perf record -F 999 -g ./my_program

didn't need --call-graph