Re: profiling an IOC

[Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov>]

On 7/17/20 1:19 PM, Siddons, David via Tech-talk wrote:
> I'd like to understand where my IOC code is taking its time, and gprof seems like the right tool for this, is that right? Where would I add the compile flags (-pg)?

You might also investigate the Linux 'perf' utility.
It doesn't need any special compiler flags, though
it's hard to find much sense without debug symbols.

I especially like the 'top' mode, which can inspect
an already running process.  eg.

$ perf top -g -p <pid>


https://perf.wiki.kernel.org/index.php/Main_Page