Getting started with gprof

Hello Gurus,

Can anyone tell me in a few simple steps how to get started with the code profiler gprof? I compiled and linked with the -pg flag and do not know how to proceed.

The program to be tested performs computationally-intensive floating point calculations.

I would appreciate any help in this matter.

Thanks. Chris.

:)

Long time since I've used gprof but it is something like this. Say your program is xxx. Run xxx. This will generate a file called gmon.out. Then

gprof xxx

It will pick up gmon.out and display the relevant info. There are a whole bunch of switches which go with gprof. You'll have to look up the man page for these.

Thanks cup,

I'm up and running with gprof. It has already provided some keen insights.

I found the following flags to be OK for a brief, clear summary:

gprof xxx.exe --brief --flat-profile

Chris.

:)