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Is anybody aware of programs for profiling OCaml code apart from using the -p option while compilation and then using gprof? I am asking this question in order to check if the sampling time of 0.01 second can be lowered further?

Pascal Cuoq
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maths-help-seeker
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    *[This technique](http://stackoverflow.com/questions/375913/what-can-i-use-to-profile-c-code-in-linux/378024#378024)* works with ocaml as well, I believe. – Mike Dunlavey Feb 08 '12 at 13:53
  • [Profiling OCaml code](https://github.com/ocaml-bench/notes/blob/master/profiling_notes.md) has a lot of useful information, including topics such as: - perf record - gprof - callgrind - landmarks - statmemprof – Thomas Leonard Oct 29 '20 at 10:59
  • [poorman's profiler]( http://poormansprofiler.org/) is perfectly applicable for OCaml programs. The same idea works out for [profiling allocations](https://sympa.inria.fr/sympa/arc/caml-list/2011-08/msg00050.html) as well. – ygrek Feb 08 '12 at 11:57

3 Answers3

6

Never used it but ocamlviz is another option.

Daniel Bünzli
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You can also use ocaml-memprof, a compiler patch (3.12.0 and 3.12 1) written by Fabrice Le Fessant, that adds memory profiling features to ocaml programs.

EDIT

Now you have ocp-memprof, an OCaml Memory Profiler that you can use online. It is available on http://memprof.typerex.org.

Çağdaş Bozman
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2

Adding to the list of useful answers: this OCamlPro post mentions performance profiling (not memory profiling) of native code on Linux using perf (installed via package linux-tools in Debian-like distributions).

Basically, you just need to run:

perf record -g ./native_program arguments

To produce a perf.data file containing profiling data, and then run

perf report -g

To see the results.

It works better when using an OCaml release with frame pointers enabled (e.g. 4.02.1+fp instead of 4.02.1 on OPAM).

Antoine
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anol
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