Re: Profiling Ada applications using gprof

[Dennis Lee Bieber <wlfraed@ix.netcom.com>]

On Tue, 4 Dec 2018 07:04:40 -0800 (PST), joakimds@kth.se declaimed the
following:

>
>As one can see there is nothing that indicates that something takes around 10 seconds to execute. Is it really impossible to detect the long running entry call A.Stop?
>

	Hypothesis: your profiling is showing CPU time consumed by the program,
not wall-clock time -- but your 10 second DELAY statement could be a
blocking call depending upon how the run-time interface was created (ie:
block waiting for some timer to expire) and consumes no CPU while blocked.
(And your 0.17s could be the time the system takes to load the executable.)

	Change the DELAY to something that actually consumes CPU time and see
what happens.

		Start_T := ada.real_time.clock;
		while (Start_T + 10.0) > ada.real_time.clock loop
			null;
		end loop;


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	Wulfraed                 Dennis Lee Bieber         AF6VN
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