diff options
Diffstat (limited to 'lib/tools/src/eprof.erl')
| -rw-r--r-- | lib/tools/src/eprof.erl | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/lib/tools/src/eprof.erl b/lib/tools/src/eprof.erl index f7c1b76364..87fdc1fa34 100644 --- a/lib/tools/src/eprof.erl +++ b/lib/tools/src/eprof.erl @@ -136,7 +136,7 @@ handle_call({analyze, procs, Opts}, _, #state{ bpd = #bpd{ p = Ps, us = Tus} = B lists:foreach(fun ({Pid, Mfas}) -> {Pn, Pus} = sum_bp_total_n_us(Mfas), - format(Fd, "~n****** Process ~w -- ~s % of profiled time *** ~n", [Pid, s("~.2f", [100.0*(Pus/Tus)])]), + format(Fd, "~n****** Process ~w -- ~s % of profiled time *** ~n", [Pid, s("~.2f", [100.0*divide(Pus,Tus)])]), print_bp_mfa(Mfas, {Pn,Pus}, Fd, Opts), ok end, gb_trees:to_list(Ps)), @@ -415,15 +415,15 @@ sort_mfa(Bpfs, mfa) when is_list(Bpfs) -> end, Bpfs); sort_mfa(Bpfs, time) when is_list(Bpfs) -> lists:sort(fun - ({_,{A,_}}, {_,{B,_}}) when A < B -> true; + ({_,{_,A}}, {_,{_,B}}) when A < B -> true; (_, _) -> false end, Bpfs); sort_mfa(Bpfs, calls) when is_list(Bpfs) -> lists:sort(fun - ({_,{_,A}}, {_,{_,B}}) when A < B -> true; + ({_,{A,_}}, {_,{B,_}}) when A < B -> true; (_, _) -> false end, Bpfs); -sort_mfa(Bpfs, _) when is_list(Bpfs) -> sort_mfa(Bpfs, calls). +sort_mfa(Bpfs, _) when is_list(Bpfs) -> sort_mfa(Bpfs, time). filter_mfa(Bpfs, Ts) when is_list(Ts) -> filter_mfa(Bpfs, [], proplists:get_value(calls, Ts, 0), proplists:get_value(time, Ts, 0)); @@ -443,8 +443,8 @@ string_bp_mfa([{Mfa, {Count, Time}}|Mfas], Tus, {MfaW, CountW, PercW, TimeW, TpC Smfa = s(Mfa), Scount = s(Count), Stime = s(Time), - Sperc = s("~.2f", [100*(Time/Tus)]), - Stpc = s("~.2f", [Time/Count]), + Sperc = s("~.2f", [100*divide(Time,Tus)]), + Stpc = s("~.2f", [divide(Time,Count)]), string_bp_mfa(Mfas, Tus, { erlang:max(MfaW, length(Smfa)), @@ -484,3 +484,6 @@ format(Fd, Format, Strings) -> io:format(Fd, Format, Strings), io:format(Format, Strings), ok. + +divide(_,0) -> 0.0; +divide(T,N) -> T/N. |