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jaseemabid/prof.erl

Created February 19, 2016 11:04
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Run the MFA, but log the time taken for it as well.
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prof.erl
%% @doc Run the MFA, but log the time taken for it as well.
prof(M, F, A) ->
Note = atom_to_list(M) ++ ":" ++ atom_to_list(F),
prof(Note, M, F, A).
prof(Note, M, F, A) ->
S = os:timestamp(),
Result = apply(M, F, A),
E = os:timestamp(),
Diff = timer:now_diff(E, S)/1.0e6,
lager:notice("[Perf] ~p ~ps", [Note, Diff]),
Result.
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