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-rw-r--r--lib/stdlib/test/rand_SUITE.erl367
1 files changed, 186 insertions, 181 deletions
diff --git a/lib/stdlib/test/rand_SUITE.erl b/lib/stdlib/test/rand_SUITE.erl
index 432293b656..f69d42551e 100644
--- a/lib/stdlib/test/rand_SUITE.erl
+++ b/lib/stdlib/test/rand_SUITE.erl
@@ -80,7 +80,7 @@ test() ->
end, Tests).
algs() ->
- [exs64, exsplus, exsp, exrop, exs1024, exs1024s].
+ [exrop, exsp, exs1024s, exs64, exsplus, exs1024].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -459,213 +459,233 @@ measure(Config) ->
{skip,{will_not_run_in_scaled_time,Scale}}
end.
+-define(CHECK_UNIFORM_RANGE(Gen, Range, X, St),
+ case (Gen) of
+ {(X), (St)} when is_integer(X), 1 =< (X), (X) =< (Range) ->
+ St
+ end).
+-define(CHECK_UNIFORM(Gen, X, St),
+ case (Gen) of
+ {(X), (St)} when is_float(X), 0.0 =< (X), (X) < 1.0 ->
+ St
+ end).
+-define(CHECK_UNIFORM_NZ(Gen, X, St),
+ case (Gen) of
+ {(X), (St)} when is_float(X), 0.0 < (X), (X) =< 1.0 ->
+ St
+ end).
+-define(CHECK_NORMAL(Gen, X, St),
+ case (Gen) of
+ {(X), (St)} when is_float(X) ->
+ St
+ end).
+
do_measure(_Config) ->
- Algos =
+ Algs =
+ algs() ++
try crypto:strong_rand_bytes(1) of
- <<_>> -> [crypto64, crypto]
+ <<_>> -> [crypto64, crypto_cache, crypto]
catch
error:low_entropy -> [];
error:undef -> []
- end ++ algs(),
+ end,
%%
- ct:pal("RNG uniform integer performance~n",[]),
- TMark1 =
+ ct:pal("~nRNG uniform integer range 10000 performance~n",[]),
+ _ =
measure_1(
- random,
fun (_) -> 10000 end,
- undefined,
- fun (Range, State) ->
- {int, random:uniform_s(Range, State)}
- end),
- _ =
- [measure_1(
- Algo,
- fun (_) -> 10000 end,
- TMark1,
- fun (Range, State) ->
- {int, rand:uniform_s(Range, State)}
- end) || Algo <- Algos],
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
%%
- ct:pal("~nRNG uniform integer half range performance~n",[]),
- HalfRangeFun = fun (State) -> half_range(State) end,
- TMark2 =
- measure_1(
- random,
- HalfRangeFun,
- undefined,
- fun (Range, State) ->
- {int, random:uniform_s(Range, State)}
- end),
+ ct:pal("~nRNG uniform integer 32 bit performance~n",[]),
_ =
- [measure_1(
- Algo,
- HalfRangeFun,
- TMark2,
- fun (Range, State) ->
- {int, rand:uniform_s(Range, State)}
- end) || Algo <- Algos],
- %%
- ct:pal("~nRNG uniform integer half range + 1 performance~n",[]),
- HalfRangePlus1Fun = fun (State) -> half_range(State) + 1 end,
- TMark3 =
measure_1(
- random,
- HalfRangePlus1Fun,
- undefined,
- fun (Range, State) ->
- {int, random:uniform_s(Range, State)}
- end),
+ fun (_) -> 1 bsl 32 end,
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
+ %%
+ ct:pal("~nRNG uniform integer half range + 1 performance~n",[]),
_ =
- [measure_1(
- Algo,
- HalfRangePlus1Fun,
- TMark3,
- fun (Range, State) ->
- {int, rand:uniform_s(Range, State)}
- end) || Algo <- Algos],
+ measure_1(
+ fun (State) -> half_range(State) + 1 end,
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
%%
ct:pal("~nRNG uniform integer full range - 1 performance~n",[]),
- FullRangeMinus1Fun = fun (State) -> (half_range(State) bsl 1) - 1 end,
- TMark4 =
- measure_1(
- random,
- FullRangeMinus1Fun,
- undefined,
- fun (Range, State) ->
- {int, random:uniform_s(Range, State)}
- end),
_ =
- [measure_1(
- Algo,
- FullRangeMinus1Fun,
- TMark4,
- fun (Range, State) ->
- {int, rand:uniform_s(Range, State)}
- end) || Algo <- Algos],
+ measure_1(
+ fun (State) -> (half_range(State) bsl 1) - 1 end,
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
%%
ct:pal("~nRNG uniform integer full range performance~n",[]),
- FullRangeFun = fun (State) -> half_range(State) bsl 1 end,
- TMark5 =
- measure_1(
- random,
- FullRangeFun,
- undefined,
- fun (Range, State) ->
- {int, random:uniform_s(Range, State)}
- end),
_ =
- [measure_1(
- Algo,
- FullRangeFun,
- TMark5,
- fun (Range, State) ->
- {int, rand:uniform_s(Range, State)}
- end) || Algo <- Algos],
+ measure_1(
+ fun (State) -> half_range(State) bsl 1 end,
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
%%
ct:pal("~nRNG uniform integer full range + 1 performance~n",[]),
- FullRangePlus1Fun = fun (State) -> (half_range(State) bsl 1) + 1 end,
- TMark6 =
- measure_1(
- random,
- FullRangePlus1Fun,
- undefined,
- fun (Range, State) ->
- {int, random:uniform_s(Range, State)}
- end),
_ =
- [measure_1(
- Algo,
- FullRangePlus1Fun,
- TMark6,
- fun (Range, State) ->
- {int, rand:uniform_s(Range, State)}
- end) || Algo <- Algos],
+ measure_1(
+ fun (State) -> (half_range(State) bsl 1) + 1 end,
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
%%
ct:pal("~nRNG uniform integer double range performance~n",[]),
- DoubleRangeFun = fun (State) -> half_range(State) bsl 2 end,
- TMark7 =
- measure_1(
- random,
- DoubleRangeFun,
- undefined,
- fun (Range, State) ->
- {int, random:uniform_s(Range, State)}
- end),
_ =
- [measure_1(
- Algo,
- DoubleRangeFun,
- TMark7,
- fun (Range, State) ->
- {int, rand:uniform_s(Range, State)}
- end) || Algo <- Algos],
+ measure_1(
+ fun (State) ->
+ half_range(State) bsl 2
+ end,
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
%%
ct:pal("~nRNG uniform integer double range + 1 performance~n",[]),
- DoubleRangePlus1Fun = fun (State) -> (half_range(State) bsl 2) + 1 end,
- TMark8 =
+ _ =
measure_1(
- random,
- DoubleRangePlus1Fun,
- undefined,
- fun (Range, State) ->
- {int, random:uniform_s(Range, State)}
- end),
+ fun (State) ->
+ (half_range(State) bsl 2) + 1
+ end,
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
+ %%
+ ct:pal("~nRNG uniform integer 64 bit performance~n",[]),
_ =
- [measure_1(
- Algo,
- DoubleRangePlus1Fun,
- TMark8,
- fun (Range, State) ->
- {int, rand:uniform_s(Range, State)}
- end) || Algo <- Algos],
+ measure_1(
+ fun (_) -> 1 bsl 64 end,
+ fun (State, Range, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM_RANGE(
+ Mod:uniform_s(Range, St0), Range,
+ X, St1)
+ end,
+ State)
+ end,
+ Algs),
%%
ct:pal("~nRNG uniform float performance~n",[]),
- TMark9 =
- measure_1(
- random,
+ _ = measure_1(
fun (_) -> 0 end,
- undefined,
- fun (_, State) ->
- {uniform, random:uniform_s(State)}
- end),
- _ =
- [measure_1(
- Algo,
- fun (_) -> 0 end,
- TMark9,
- fun (_, State) ->
- {uniform, rand:uniform_s(State)}
- end) || Algo <- Algos],
+ fun (State, _, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_UNIFORM(Mod:uniform_s(St0), X, St)
+ end,
+ State)
+ end,
+ Algs),
%%
ct:pal("~nRNG normal float performance~n",[]),
- io:format("~.12w: not implemented (too few bits)~n", [random]),
- _ = [measure_1(
- Algo,
- fun (_) -> 0 end,
- TMark9,
- fun (_, State) ->
- {normal, rand:normal_s(State)}
- end) || Algo <- Algos],
+ _ = measure_1(
+ fun (_) -> 0 end,
+ fun (State, _, Mod) ->
+ measure_loop(
+ fun (St0) ->
+ ?CHECK_NORMAL(Mod:normal_s(St0), X, St1)
+ end,
+ State)
+ end,
+ Algs),
ok.
-measure_1(Algo, RangeFun, TMark, Gen) ->
+measure_loop(Fun, State) ->
+ measure_loop(Fun, State, ?LOOP).
+%%
+measure_loop(Fun, State, N) when 0 < N ->
+ measure_loop(Fun, Fun(State), N-1);
+measure_loop(_, _, _) ->
+ ok.
+
+measure_1(RangeFun, Fun, Algs) ->
+ TMark = measure_1(RangeFun, Fun, hd(Algs), undefined),
+ [TMark] ++
+ [measure_1(RangeFun, Fun, Alg, TMark) || Alg <- tl(Algs)].
+
+measure_1(RangeFun, Fun, Alg, TMark) ->
Parent = self(),
- Seed =
- case Algo of
+ {Mod, State} =
+ case Alg of
crypto64 ->
- crypto64_seed();
+ {rand, crypto64_seed()};
+ crypto_cache ->
+ {rand, crypto:rand_seed_alg(crypto_cache)};
crypto ->
- crypto:rand_seed_s();
+ {rand, crypto:rand_seed_s()};
random ->
- random:seed(os:timestamp()), get(random_seed);
+ {random, random:seed(os:timestamp()), get(random_seed)};
_ ->
- rand:seed_s(Algo)
+ {rand, rand:seed_s(Alg)}
end,
- Range = RangeFun(Seed),
+ Range = RangeFun(State),
Pid = spawn_link(
fun() ->
- Fun = fun() -> measure_2(?LOOP, Range, Seed, Gen) end,
- {Time, ok} = timer:tc(Fun),
+ {Time, ok} = timer:tc(fun () -> Fun(State, Range, Mod) end),
Percent =
case TMark of
undefined -> 100;
@@ -673,7 +693,7 @@ measure_1(Algo, RangeFun, TMark, Gen) ->
end,
io:format(
"~.12w: ~p ns ~p% [16#~.16b]~n",
- [Algo, (Time * 1000 + 500) div ?LOOP, Percent, Range]),
+ [Alg, (Time * 1000 + 500) div ?LOOP, Percent, Range]),
Parent ! {self(), Time},
normal
end),
@@ -681,21 +701,6 @@ measure_1(Algo, RangeFun, TMark, Gen) ->
{Pid, Msg} -> Msg
end.
-measure_2(N, Range, State0, Fun) when N > 0 ->
- case Fun(Range, State0) of
- {int, {Random, State}}
- when is_integer(Random), Random >= 1, Random =< Range ->
- measure_2(N-1, Range, State, Fun);
- {uniform, {Random, State}}
- when is_float(Random), 0.0 =< Random, Random < 1.0 ->
- measure_2(N-1, Range, State, Fun);
- {normal, {Random, State}} when is_float(Random) ->
- measure_2(N-1, Range, State, Fun);
- Res ->
- exit({error, Res, State0})
- end;
-measure_2(0, _, _, _) -> ok.
-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% The jump sequence tests has two parts
%% for those with the functional API (jump/1)
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 02:46:14 +0000