Re: GNAT profiling

["Alex R. Mosteo" <devnull@mailinator.com>]

Jeffrey Creem wrote:
> Alex R. Mosteo wrote:
> 
>> Ok, after revising some old threads, I see there was a consensus in 
>> that (at least linux) gprof doesn't work with multitasking programs, 
>> and there were reports that it neither does with single-task programs.
>>
>> I'm thus musing what could be a (preferible free) option for code 
>> profiling. I've successfully used valgrind for memory profiling, but 
>> for now I'm DoD with this other aspect.
>>
>> Any suggestions welcome!
> 
> 
> I've certainly used gprof on single threaded programs and it worked fine 
> (mostly under Solaris, but still quite a bit under Linux).
> 
> One issue has been that for some versions of distribution shipped GCCs 
> had pretty broken/bad or incompatible Ada/debug/gprof support.
> 
> I know with CentOS 4 things are pretty broken.
> 
> Might be interesting to look into oprofile support (might require a 
> kernel rebuild).

Thanks ldb and Jeffrey for pointing me to this profiler, certainly seems 
very promising and, according to the webpage, doesn't require kernel 
recompilation but just installing a module.

I will post my experience with it after trying.