ft: 测试代码添加

src/test/wsTc.erl

@@ -0,0 +1,216 @@
+-module(wsTc).
+
+-compile(inline).
+-compile({inline_size, 128}).
+
+-export([
+   tc/1
+   , tc/2
+   , tc/3
+   , ts/4
+   , tm/5
+   , cvrTimeUnit/3
+   , test/1
+]).
+
+%% Measure the execution time (in nanoseconds) for Fun().
+-spec tc(Fun :: function()) -> {Time :: integer(), Value :: term()}.
+tc(F) ->
+   T1 = erlang:monotonic_time(),
+   Val = F(),
+   T2 = erlang:monotonic_time(),
+   Time = cvrTimeUnit(T2 - T1, native, nanosecond),
+   {Time, Val}.
+
+%% Measure the execution time (in nanoseconds) for Fun(Args).
+-spec tc(Fun :: function(), Arguments :: [term()]) -> {Time :: integer(), Value :: term()}.
+tc(F, A) ->
+   T1 = erlang:monotonic_time(),
+   Val = apply(F, A),
+   T2 = erlang:monotonic_time(),
+   Time = cvrTimeUnit(T2 - T1, native, nanosecond),
+   {Time, Val}.
+
+%% Measure the execution time (in nanoseconds) for an MFA.
+-spec tc(Module :: module(), Function :: atom(), Arguments :: [term()]) -> {Time :: integer(), Value :: term()}.
+tc(M, F, A) ->
+   T1 = erlang:monotonic_time(),
+   Val = apply(M, F, A),
+   T2 = erlang:monotonic_time(),
+   Time = cvrTimeUnit(T2 - T1, native, nanosecond),
+   {Time, Val}.
+
+-spec cvrTimeUnit(Time :: integer(), FromUnit :: erlang:time_unit(), ToUnit :: erlang:time_unit()) -> ConvertedTime :: integer().
+cvrTimeUnit(Time, FromUnit, ToUnit) ->
+   try
+      FU =
+         case FromUnit of
+            native -> erts_internal:time_unit();
+            perf_counter -> erts_internal:perf_counter_unit();
+            nanosecond -> 1000 * 1000 * 1000;
+            microsecond -> 1000 * 1000;
+            millisecond -> 1000;
+            second -> 1
+         end,
+      TU =
+         case ToUnit of
+            native -> erts_internal:time_unit();
+            perf_counter -> erts_internal:perf_counter_unit();
+            nanosecond -> 1000 * 1000 * 1000;
+            microsecond -> 1000 * 1000;
+            millisecond -> 1000;
+            second -> 1
+         end,
+      case Time < 0 of
+         true -> (TU * Time - (FU - 1)) div FU;
+         _ -> TU * Time div FU
+      end
+   catch
+      _ : _ ->
+         erlang:error(badarg, [Time, FromUnit, ToUnit])
+   end.
+
+%% 单进程循环测试：LoopTimes是循环次数
+%% utTc:ts(LoopTimes, Module, Function, ArgsList).
+%% 多进程并发测试：SpawnProcessesCount是并发的进程数 LoopTimes是循环次数
+%% utTc:tm(ProcessesCount, LoopTimes, Module, Function, ArgsList).
+
+doTc(M, F, A) ->
+   T1 = erlang:monotonic_time(),
+   apply(M, F, A),
+   T2 = erlang:monotonic_time(),
+   cvrTimeUnit(T2 - T1, native, nanosecond).
+
+distribution(List, Aver) ->
+   distribution(List, Aver, 0, 0).
+distribution([H | T], Aver, Greater, Less) ->
+   case H > Aver of
+      true ->
+         distribution(T, Aver, Greater + 1, Less);
+      false ->
+         distribution(T, Aver, Greater, Less + 1)
+   end;
+distribution([], _Aver, Greater, Less) ->
+   {Greater, Less}.
+
+%% ===================================================================
+%% test: one process test N times
+%% ===================================================================
+ts(LoopTime, M, F, A) ->
+   {Max, Min, Sum, Aver, Greater, Less} = loopTs(LoopTime, M, F, A, LoopTime, 0, 0, 0, []),
+   io:format("=====================~n"),
+   io:format("execute Args:~p~n", [A]),
+   io:format("execute Fun :~p~n", [F]),
+   io:format("execute Mod :~p~n", [M]),
+   io:format("execute LoopTime:~p~n", [LoopTime]),
+   io:format("MaxTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Max), float_to_binary(Max / 1000000000, [{decimals, 6}, compact])]),
+   io:format("MinTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Min), float_to_binary(Min / 1000000000, [{decimals, 6}, compact])]),
+   io:format("SumTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Sum), float_to_binary(Sum / 1000000000, [{decimals, 6}, compact])]),
+   io:format("AvgTime: ~10s(ns) ~10s(s)~n", [float_to_binary(Aver, [{decimals, 6}, compact]), float_to_binary(Aver / 1000000000, [{decimals, 6}, compact])]),
+   io:format("Grar   : ~10s(cn) ~10s(~s)~n", [integer_to_binary(Greater), float_to_binary(Greater / LoopTime, [{decimals, 2}]), <<"%">>]),
+   io:format("Less   : ~10s(cn) ~10s(~s)~n", [integer_to_binary(Less), float_to_binary(Less / LoopTime, [{decimals, 2}]), <<"%">>]),
+   io:format("=====================~n").
+
+
+loopTs(0, _M, _F, _A, LoopTime, Max, Min, Sum, List) ->
+   Aver = Sum / LoopTime,
+   {Greater, Less} = distribution(List, Aver),
+   {Max, Min, Sum, Aver, Greater, Less};
+loopTs(Index, M, F, A, LoopTime, Max, Min, Sum, List) ->
+   Nanosecond = doTc(M, F, A),
+   NewSum = Sum + Nanosecond,
+   if
+      Max == 0 ->
+         NewMax = NewMin = Nanosecond;
+      Max < Nanosecond ->
+         NewMax = Nanosecond,
+         NewMin = Min;
+      Min > Nanosecond ->
+         NewMax = Max,
+         NewMin = Nanosecond;
+      true ->
+         NewMax = Max,
+         NewMin = Min
+   end,
+   loopTs(Index - 1, M, F, A, LoopTime, NewMax, NewMin, NewSum, [Nanosecond | List]).
+
+
+%% ===================================================================
+%% Concurrency test: N processes each test one time
+%% ===================================================================
+
+tm(ProcCnt, LoopTime, M, F, A) ->
+   loopSpawn(ProcCnt, M, F, A, self(), LoopTime),
+   {Max, Min, Sum, Aver, Greater, Less} = collector(ProcCnt, 0, 0, 0, ProcCnt, []),
+   io:format("=====================~n"),
+   io:format("execute Args:~p~n", [A]),
+   io:format("execute Fun :~p~n", [F]),
+   io:format("execute Mod :~p~n", [M]),
+   io:format("execute LoopTime:~p~n", [LoopTime]),
+   io:format("execute ProcCnts:~p~n", [ProcCnt]),
+   io:format("MaxTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Max), float_to_binary(Max / 1000000000, [{decimals, 6}, compact])]),
+   io:format("MinTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Min), float_to_binary(Min / 1000000000, [{decimals, 6}, compact])]),
+   io:format("SumTime: ~10s(ns) ~10s(s)~n", [integer_to_binary(Sum), float_to_binary(Sum / 1000000000, [{decimals, 6}, compact])]),
+   io:format("AvgTime: ~10s(ns) ~10s(s)~n", [float_to_binary(Aver, [{decimals, 6}, compact]), float_to_binary(Aver / 1000000000, [{decimals, 6}, compact])]),
+   io:format("Grar   : ~10s(cn) ~10s(~s)~n", [integer_to_binary(Greater), float_to_binary(Greater / LoopTime, [{decimals, 2}]), <<"%">>]),
+   io:format("Less   : ~10s(cn) ~10s(~s)~n", [integer_to_binary(Less), float_to_binary(Less / LoopTime, [{decimals, 2}]), <<"%">>]),
+   io:format("=====================~n").
+
+
+loopSpawn(0, _, _, _, _, _) ->
+   ok;
+loopSpawn(ProcCnt, M, F, A, CollectorPid, LoopTime) ->
+   spawn_link(fun() -> worker(LoopTime, M, F, A, CollectorPid) end),
+   loopSpawn(ProcCnt - 1, M, F, A, CollectorPid, LoopTime).
+
+collector(0, Max, Min, Sum, ProcCnt, List) ->
+   Aver = Sum / ProcCnt,
+   {Greater, Less} = distribution(List, Aver),
+   {Max, Min, Sum, Aver, Greater, Less};
+collector(Index, Max, Min, Sum, ProcCnt, List) ->
+   receive
+      {result, Nanosecond} ->
+         NewSum = Sum + Nanosecond,
+         if
+            Max == 0 ->
+               NewMax = NewMin = Nanosecond;
+            Max < Nanosecond ->
+               NewMax = Nanosecond,
+               NewMin = Min;
+            Min > Nanosecond ->
+               NewMax = Max,
+               NewMin = Nanosecond;
+            true ->
+               NewMax = Max,
+               NewMin = Min
+         end,
+         collector(Index - 1, NewMax, NewMin, NewSum, ProcCnt, [Nanosecond | List])
+   after 1800000 ->
+      io:format("execute time out~n"),
+      ok
+   end.
+
+worker(LoopTime, M, F, A, CollectorPid) ->
+   SumTime = loopTm(LoopTime, M, F, A, 0),
+   CollectorPid ! {result, SumTime}.
+
+loopTm(0, _, _, _, SumTime) ->
+   SumTime;
+loopTm(LoopTime, M, F, A, SumTime) ->
+   Microsecond = doTc(M, F, A),
+   loopTm(LoopTime - 1, M, F, A, SumTime + Microsecond).
+
+test(N) ->
+   M1 = erlang:monotonic_time(),
+   timer:sleep(N),
+   M2 = erlang:monotonic_time(),
+   Time = cvrTimeUnit(M2 - M1, native, nanosecond),
+   io:format("IMY******************111 ~p~n", [Time]),
+
+   S1 = erlang:system_time(nanosecond),
+   timer:sleep(N),
+   S2 = erlang:system_time(nanosecond),
+   io:format("IMY******************222 ~p~n", [S2 - S1]).
+
+
+