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-rw-r--r--erts/emulator/test/after_SUITE.erl29
-rw-r--r--erts/emulator/test/alloc_SUITE.erl21
-rw-r--r--erts/emulator/test/binary_SUITE.erl4
-rw-r--r--erts/emulator/test/busy_port_SUITE.erl8
-rw-r--r--erts/emulator/test/code_SUITE.erl22
-rw-r--r--erts/emulator/test/decode_packet_SUITE.erl4
-rw-r--r--erts/emulator/test/distribution_SUITE.erl23
-rw-r--r--erts/emulator/test/driver_SUITE.erl37
-rw-r--r--erts/emulator/test/erl_link_SUITE.erl7
-rw-r--r--erts/emulator/test/estone_SUITE.erl25
-rw-r--r--erts/emulator/test/float_SUITE.erl7
-rw-r--r--erts/emulator/test/gc_SUITE.erl10
-rw-r--r--erts/emulator/test/map_SUITE.erl4
-rw-r--r--erts/emulator/test/module_info_SUITE.erl3
-rw-r--r--erts/emulator/test/monitor_SUITE.erl6
-rw-r--r--erts/emulator/test/mtx_SUITE.erl6
-rw-r--r--erts/emulator/test/nif_SUITE.erl4
-rw-r--r--erts/emulator/test/node_container_SUITE.erl24
-rw-r--r--erts/emulator/test/old_scheduler_SUITE.erl24
-rw-r--r--erts/emulator/test/port_SUITE.erl6
-rw-r--r--erts/emulator/test/process_SUITE.erl20
-rw-r--r--erts/emulator/test/scheduler_SUITE.erl25
-rw-r--r--erts/emulator/test/signal_SUITE.erl6
-rw-r--r--erts/emulator/test/smoke_test_SUITE.erl7
-rw-r--r--erts/emulator/test/system_info_SUITE.erl7
-rw-r--r--erts/emulator/test/time_SUITE.erl75
-rw-r--r--erts/emulator/test/timer_bif_SUITE.erl5
-rw-r--r--erts/emulator/test/trace_call_time_SUITE.erl18
28 files changed, 236 insertions, 201 deletions
diff --git a/erts/emulator/test/after_SUITE.erl b/erts/emulator/test/after_SUITE.erl
index 7cc329cc69..699a1436ce 100644
--- a/erts/emulator/test/after_SUITE.erl
+++ b/erts/emulator/test/after_SUITE.erl
@@ -70,30 +70,23 @@ end_per_testcase(_Func, Config) ->
t_after(Config) when is_list(Config) ->
?line spawn(fun frequent_process/0),
?line Period = test_server:minutes(1),
- ?line Before = erlang:now(),
+ ?line Before = erlang:monotonic_time(),
receive
after Period ->
- ?line After = erlang:now(),
+ ?line After = erlang:monotonic_time(),
?line report(Period, Before, After)
end.
-
report(Period, Before, After) ->
- ?line Elapsed = (element(1, After)*1000000000
- +element(2, After)*1000
- +element(3, After) div 1000) -
- (element(1,Before)*1000000000
- + element(2,Before)*1000 + element(3,Before) div 1000),
- ?line case Elapsed*100 / Period of
- Percent when Percent > 100.10 ->
- ?line test_server:fail({too_inaccurate, Percent});
- Percent when Percent < 100.0 ->
- ?line test_server:fail({too_early, Percent});
- Percent ->
- ?line Comment = io_lib:format("Elapsed/expected: ~.2f %",
- [Percent]),
- {comment, lists:flatten(Comment)}
- end.
+ case erlang:convert_time_unit(After - Before, native, 100*1000) / Period of
+ Percent when Percent > 100.10 ->
+ test_server:fail({too_inaccurate, Percent});
+ Percent when Percent < 100.0 ->
+ test_server:fail({too_early, Percent});
+ Percent ->
+ Comment = io_lib:format("Elapsed/expected: ~.2f %", [Percent]),
+ {comment, lists:flatten(Comment)}
+ end.
frequent_process() ->
receive
diff --git a/erts/emulator/test/alloc_SUITE.erl b/erts/emulator/test/alloc_SUITE.erl
index 35c44c229a..12a48cc484 100644
--- a/erts/emulator/test/alloc_SUITE.erl
+++ b/erts/emulator/test/alloc_SUITE.erl
@@ -241,18 +241,15 @@ receive_drv_result(Port, CaseName) ->
start_node(Config) ->
start_node(Config, []).
start_node(Config, Opts) when is_list(Config), is_list(Opts) ->
- ?line Pa = filename:dirname(code:which(?MODULE)),
- ?line {A, B, C} = now(),
- ?line Name = list_to_atom(atom_to_list(?MODULE)
- ++ "-"
- ++ atom_to_list(?config(testcase, Config))
- ++ "-"
- ++ integer_to_list(A)
- ++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)),
- ?line ?t:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]).
+ Pa = filename:dirname(code:which(?MODULE)),
+ Name = list_to_atom(atom_to_list(?MODULE)
+ ++ "-"
+ ++ atom_to_list(?config(testcase, Config))
+ ++ "-"
+ ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-"
+ ++ integer_to_list(erlang:unique_integer([positive]))),
+ ?t:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]).
stop_node(Node) ->
?t:stop_node(Node).
diff --git a/erts/emulator/test/binary_SUITE.erl b/erts/emulator/test/binary_SUITE.erl
index 44e9e4f243..5911652447 100644
--- a/erts/emulator/test/binary_SUITE.erl
+++ b/erts/emulator/test/binary_SUITE.erl
@@ -520,7 +520,9 @@ external_size_1(Term, Size0, Limit) when Size0 < Limit ->
external_size_1(_, _, _) -> ok.
t_iolist_size(Config) when is_list(Config) ->
- ?line Seed = now(),
+ ?line Seed = {erlang:monotonic_time(),
+ erlang:time_offset(),
+ erlang:unique_integer([positive])},
?line io:format("Seed: ~p", [Seed]),
?line random:seed(Seed),
?line Base = <<0:(1 bsl 20)/unit:8>>,
diff --git a/erts/emulator/test/busy_port_SUITE.erl b/erts/emulator/test/busy_port_SUITE.erl
index 2ed5aaa0d0..d44a03516a 100644
--- a/erts/emulator/test/busy_port_SUITE.erl
+++ b/erts/emulator/test/busy_port_SUITE.erl
@@ -516,13 +516,13 @@ hs_busy_pcmd(Prt, Opts, StartFun, EndFun) ->
P = spawn_link(fun () ->
erlang:yield(),
Tester ! {self(), doing_port_command},
- Start = now(),
+ Start = erlang:monotonic_time(micro_seconds),
Res = try {return,
port_command(Prt, [], Opts)}
catch Exception:Error -> {Exception, Error}
end,
- End = now(),
- Time = round(timer:now_diff(End, Start)/1000),
+ End = erlang:monotonic_time(micro_seconds),
+ Time = round((End - Start)/1000),
Tester ! {self(), port_command_result, Res, Time}
end),
receive
@@ -776,7 +776,7 @@ run_command(_M,spawn,{Args,Opts}) ->
run_command(M,spawn,Args) ->
run_command(M,spawn,{Args,[]});
run_command(Mod,Func,Args) ->
- erlang:display({{Mod,Func,Args},now()}),
+ erlang:display({{Mod,Func,Args}, erlang:system_time(micro_seconds)}),
apply(Mod,Func,Args).
validate_scenario(Data,[{print,Var}|T]) ->
diff --git a/erts/emulator/test/code_SUITE.erl b/erts/emulator/test/code_SUITE.erl
index b0408cabe1..df7c8ed1d1 100644
--- a/erts/emulator/test/code_SUITE.erl
+++ b/erts/emulator/test/code_SUITE.erl
@@ -389,61 +389,63 @@ module_md5_ok(Code) ->
make_stub(Config) when is_list(Config) ->
catch erlang:purge_module(my_code_test),
+ MD5 = erlang:md5(<<>>),
?line Data = ?config(data_dir, Config),
?line File = filename:join(Data, "my_code_test"),
?line {ok,my_code_test,Code} = compile:file(File, [binary]),
- ?line my_code_test = code:make_stub_module(my_code_test, Code, {[],[]}),
+ ?line my_code_test = code:make_stub_module(my_code_test, Code, {[],[],MD5}),
?line true = erlang:delete_module(my_code_test),
?line true = erlang:purge_module(my_code_test),
?line my_code_test = code:make_stub_module(my_code_test,
make_unaligned_sub_binary(Code),
- {[],[]}),
+ {[],[],MD5}),
?line true = erlang:delete_module(my_code_test),
?line true = erlang:purge_module(my_code_test),
?line my_code_test = code:make_stub_module(my_code_test, zlib:gzip(Code),
- {[],[]}),
+ {[],[],MD5}),
?line true = erlang:delete_module(my_code_test),
?line true = erlang:purge_module(my_code_test),
%% Should fail.
?line {'EXIT',{badarg,_}} =
- (catch code:make_stub_module(my_code_test, <<"bad">>, {[],[]})),
+ (catch code:make_stub_module(my_code_test, <<"bad">>, {[],[],MD5})),
?line {'EXIT',{badarg,_}} =
(catch code:make_stub_module(my_code_test,
bit_sized_binary(Code),
- {[],[]})),
+ {[],[],MD5})),
?line {'EXIT',{badarg,_}} =
(catch code:make_stub_module(my_code_test_with_wrong_name,
- Code, {[],[]})),
+ Code, {[],[],MD5})),
ok.
make_stub_many_funs(Config) when is_list(Config) ->
catch erlang:purge_module(many_funs),
+ MD5 = erlang:md5(<<>>),
?line Data = ?config(data_dir, Config),
?line File = filename:join(Data, "many_funs"),
?line {ok,many_funs,Code} = compile:file(File, [binary]),
- ?line many_funs = code:make_stub_module(many_funs, Code, {[],[]}),
+ ?line many_funs = code:make_stub_module(many_funs, Code, {[],[],MD5}),
?line true = erlang:delete_module(many_funs),
?line true = erlang:purge_module(many_funs),
?line many_funs = code:make_stub_module(many_funs,
make_unaligned_sub_binary(Code),
- {[],[]}),
+ {[],[],MD5}),
?line true = erlang:delete_module(many_funs),
?line true = erlang:purge_module(many_funs),
%% Should fail.
?line {'EXIT',{badarg,_}} =
- (catch code:make_stub_module(many_funs, <<"bad">>, {[],[]})),
+ (catch code:make_stub_module(many_funs, <<"bad">>, {[],[],MD5})),
?line {'EXIT',{badarg,_}} =
(catch code:make_stub_module(many_funs,
bit_sized_binary(Code),
- {[],[]})),
+ {[],[],MD5})),
ok.
constant_pools(Config) when is_list(Config) ->
diff --git a/erts/emulator/test/decode_packet_SUITE.erl b/erts/emulator/test/decode_packet_SUITE.erl
index 2baf91cf29..330ad299e5 100644
--- a/erts/emulator/test/decode_packet_SUITE.erl
+++ b/erts/emulator/test/decode_packet_SUITE.erl
@@ -52,7 +52,9 @@ end_per_group(_GroupName, Config) ->
init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
- Seed = {S1,S2,S3} = now(),
+ Seed = {S1,S2,S3} = {erlang:monotonic_time(),
+ erlang:time_offset(),
+ erlang:unique_integer()},
random:seed(S1,S2,S3),
io:format("*** SEED: ~p ***\n", [Seed]),
Dog=?t:timetrap(?t:minutes(1)),
diff --git a/erts/emulator/test/distribution_SUITE.erl b/erts/emulator/test/distribution_SUITE.erl
index aa6cf2b881..33cb56c0b9 100644
--- a/erts/emulator/test/distribution_SUITE.erl
+++ b/erts/emulator/test/distribution_SUITE.erl
@@ -1337,10 +1337,7 @@ unwanted_cixs() ->
get_conflicting_atoms(_CIX, 0) ->
[];
get_conflicting_atoms(CIX, N) ->
- {A, B, C} = now(),
- Atom = list_to_atom("atom" ++ integer_to_list(A*1000000000000
- + B*1000000
- + C)),
+ Atom = list_to_atom("atom" ++ integer_to_list(erlang:unique_integer([positive]))),
case erts_debug:get_internal_state({atom_out_cache_index, Atom}) of
CIX ->
[Atom|get_conflicting_atoms(CIX, N-1)];
@@ -1351,10 +1348,7 @@ get_conflicting_atoms(CIX, N) ->
get_conflicting_unicode_atoms(_CIX, 0) ->
[];
get_conflicting_unicode_atoms(CIX, N) ->
- {A, B, C} = now(),
- Atom = string_to_atom([16#1f608] ++ "atom" ++ integer_to_list(A*1000000000000
- + B*1000000
- + C)),
+ Atom = string_to_atom([16#1f608] ++ "atom" ++ integer_to_list(erlang:unique_integer([positive]))),
case erts_debug:get_internal_state({atom_out_cache_index, Atom}) of
CIX ->
[Atom|get_conflicting_unicode_atoms(CIX, N-1)];
@@ -1967,8 +1961,7 @@ dmsg_bad_atom_cache_ref() ->
%%% Utilities
timestamp() ->
- {A,B,C} = erlang:now(),
- (C div 1000) + (B * 1000) + (A * 1000000000).
+ erlang:monotonic_time(milli_seconds).
start_node(X) ->
start_node(X, [], []).
@@ -1992,7 +1985,9 @@ start_node(Config, Args, Rel) when is_list(Config), is_list(Rel) ->
++ "-"
++ atom_to_list(?config(testcase, Config))
++ "-"
- ++ integer_to_list(timestamp()))),
+ ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-"
+ ++ integer_to_list(erlang:unique_integer([positive])))),
start_node(Name, Args, Rel).
stop_node(Node) ->
@@ -2109,7 +2104,7 @@ node_monitor(Master) ->
Master ! {nodeup, node(), Node}
end,
Nodes0),
- ?t:format("~p ~p: ~p~n", [node(), erlang:now(), Nodes0]),
+ ?t:format("~p ~p: ~p~n", [node(), erlang:system_time(micro_seconds), Nodes0]),
node_monitor_loop(Master);
false ->
net_kernel:monitor_nodes(false, Opts),
@@ -2130,7 +2125,7 @@ node_monitor_loop(Master) ->
receive
{nodeup, Node, _InfoList} = Msg ->
Master ! {nodeup, node(), Node},
- ?t:format("~p ~p: ~p~n", [node(), erlang:now(), Msg]),
+ ?t:format("~p ~p: ~p~n", [node(), erlang:system_time(micro_seconds), Msg]),
node_monitor_loop(Master);
{nodedown, Node, InfoList} = Msg ->
Reason = case lists:keysearch(nodedown_reason, 1, InfoList) of
@@ -2138,7 +2133,7 @@ node_monitor_loop(Master) ->
_ -> undefined
end,
Master ! {nodedown, node(), Node, Reason},
- ?t:format("~p ~p: ~p~n", [node(), erlang:now(), Msg]),
+ ?t:format("~p ~p: ~p~n", [node(), erlang:system_time(micro_seconds), Msg]),
node_monitor_loop(Master)
end.
diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl
index 623d62f876..e6beda1ccf 100644
--- a/erts/emulator/test/driver_SUITE.erl
+++ b/erts/emulator/test/driver_SUITE.erl
@@ -390,12 +390,12 @@ timer_measure(Config) when is_list(Config) ->
try_timeouts(_, 0) -> ok;
try_timeouts(Port, Timeout) ->
- ?line TimeBefore = now(),
+ ?line TimeBefore = erlang:monotonic_time(),
?line erlang:port_command(Port, <<?START_TIMER,Timeout:32>>),
receive
{Port,{data,[?TIMER]}} ->
?line Elapsed = erl_millisecs() - erl_millisecs(TimeBefore),
- io:format("Elapsed: ~p Timeout: ~p\n", [Elapsed,Timeout]),
+ io:format("Elapsed: ~p Timeout: ~p\n", [Elapsed, Timeout]),
if
Elapsed < Timeout ->
?line ?t:fail(too_short);
@@ -455,7 +455,7 @@ timer_delay(Config) when is_list(Config) ->
Name = 'timer_drv',
?line Port = start_driver(Config, Name, false),
- ?line TimeBefore = now(),
+ ?line TimeBefore = erlang:monotonic_time(),
Timeout0 = 350,
?line erlang:port_command(Port, <<?DELAY_START_TIMER,Timeout0:32>>),
Timeout = Timeout0 +
@@ -499,7 +499,7 @@ timer_change(Config) when is_list(Config) ->
try_change_timer(_Port, 0) -> ok;
try_change_timer(Port, Timeout) ->
?line Timeout_3 = Timeout*3,
- ?line TimeBefore = now(),
+ ?line TimeBefore = erlang:monotonic_time(),
?line erlang:port_command(Port, <<?START_TIMER,Timeout_3:32>>),
?line erlang:port_command(Port, <<?START_TIMER,Timeout:32>>),
receive
@@ -2520,13 +2520,11 @@ uniform(N) ->
end,
random:uniform(N).
-%% return millisecs from statistics source
erl_millisecs() ->
- {Ms, S, Us} = erlang:now(),
- Ms * 1000000000 + S * 1000 + Us / 1000.
+ erl_millisecs(erlang:monotonic_time()).
-erl_millisecs({Ms,S,Us}) ->
- Ms * 1000000000 + S * 1000 + Us / 1000.
+erl_millisecs(MonotonicTime) ->
+ (1000*MonotonicTime)/erlang:convert_time_unit(1,seconds,native).
%% Start/stop drivers.
start_driver(Config, Name, Binary) ->
@@ -2575,18 +2573,15 @@ sleep(Ms) when is_integer(Ms), Ms >= 0 ->
start_node(Config) when is_list(Config) ->
- ?line Pa = filename:dirname(code:which(?MODULE)),
- ?line {A, B, C} = now(),
- ?line Name = list_to_atom(atom_to_list(?MODULE)
- ++ "-"
- ++ atom_to_list(?config(testcase, Config))
- ++ "-"
- ++ integer_to_list(A)
- ++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)),
- ?line ?t:start_node(Name, slave, [{args, "-pa "++Pa}]).
+ Pa = filename:dirname(code:which(?MODULE)),
+ Name = list_to_atom(atom_to_list(?MODULE)
+ ++ "-"
+ ++ atom_to_list(?config(testcase, Config))
+ ++ "-"
+ ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-"
+ ++ integer_to_list(erlang:unique_integer([positive]))),
+ ?t:start_node(Name, slave, [{args, "-pa "++Pa}]).
stop_node(Node) ->
?t:stop_node(Node).
diff --git a/erts/emulator/test/erl_link_SUITE.erl b/erts/emulator/test/erl_link_SUITE.erl
index 435c0872e6..02c1d84d59 100644
--- a/erts/emulator/test/erl_link_SUITE.erl
+++ b/erts/emulator/test/erl_link_SUITE.erl
@@ -1035,16 +1035,13 @@ get_names(N, T) when is_atom(T) ->
get_names(0, _, Acc) ->
Acc;
get_names(N, T, Acc) ->
- {A, B, C} = now(),
get_names(N-1, T, [list_to_atom(atom_to_list(?MODULE)
++ "-"
++ atom_to_list(T)
++ "-"
- ++ integer_to_list(A)
+ ++ integer_to_list(erlang:system_time(seconds))
++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)) | Acc]).
+ ++ integer_to_list(erlang:unique_integer([positive]))) | Acc]).
start_node(Name) ->
?line start_node(Name, "").
diff --git a/erts/emulator/test/estone_SUITE.erl b/erts/emulator/test/estone_SUITE.erl
index 1de6d6fb56..67a53d94b1 100644
--- a/erts/emulator/test/estone_SUITE.erl
+++ b/erts/emulator/test/estone_SUITE.erl
@@ -339,7 +339,6 @@ micros() ->
].
macro(Ms,DataDir) ->
- erlang:now(), %% compensate for old 4.3 firsttime clock bug :-(
statistics(reductions),
statistics(runtime),
lists(500), %% fixup cache on first round
@@ -369,10 +368,9 @@ run_micro(Top, M, DataDir) ->
apply_micro(M) ->
{GC0, Words0, _} = statistics(garbage_collection),
statistics(reductions),
- Before = erlang:now(),
-
+ Before = monotonic_time(),
Compensate = apply_micro(M#micro.function, M#micro.loops),
- After = erlang:now(),
+ After = monotonic_time(),
{GC1, Words1, _} = statistics(garbage_collection),
{_, Reds} = statistics(reductions),
Elapsed = subtr(Before, After),
@@ -389,12 +387,13 @@ apply_micro(M) ->
{kilo_reductions, Reds div 1000},
{gc_intensity, gci(Elapsed, GC1 - GC0, Words1 - Words0)}].
+monotonic_time() ->
+ try erlang:monotonic_time() catch error:undef -> erlang:now() end.
-subtr(Before, After) ->
- (element(1,After)*1000000000000
- +element(2,After)*1000000+element(3,After)) -
- (element(1,Before)*1000000000000
- +element(2,Before)*1000000+element(3,Before)).
+subtr(Before, After) when is_integer(Before), is_integer(After) ->
+ erlang:convert_time_unit(After-Before, native, micro_seconds);
+subtr({_,_,_}=Before, {_,_,_}=After) ->
+ timer:now_diff(After, Before).
gci(Micros, Words, Gcs) ->
((256 * Gcs) / Micros) + (Words / Micros).
@@ -633,10 +632,10 @@ tup_trav(T, P, End) ->
%% Port I/O
port_io(I) ->
EstoneCat = get(estone_cat),
- Before = erlang:now(),
+ Before = monotonic_time(),
Pps = make_port_pids(5, I, EstoneCat), %% 5 ports
send_procs(Pps, go),
- After = erlang:now(),
+ After = monotonic_time(),
wait_for_pids(Pps),
subtr(Before, After).
@@ -854,10 +853,10 @@ handle_call(_From, State, [abc]) ->
%% Binary handling, creating, manipulating and sending binaries
binary_h(I) ->
- Before = erlang:now(),
+ Before = monotonic_time(),
P = spawn(?MODULE, echo, [self()]),
B = list_to_binary(lists:duplicate(2000, 5)),
- After = erlang:now(),
+ After = monotonic_time(),
Compensate = subtr(Before, After),
binary_h_2(I, P, B),
Compensate.
diff --git a/erts/emulator/test/float_SUITE.erl b/erts/emulator/test/float_SUITE.erl
index 4a45afa9e9..a07516b5a9 100644
--- a/erts/emulator/test/float_SUITE.erl
+++ b/erts/emulator/test/float_SUITE.erl
@@ -294,16 +294,13 @@ id(I) -> I.
start_node(Config) when is_list(Config) ->
?line Pa = filename:dirname(code:which(?MODULE)),
- ?line {A, B, C} = now(),
?line Name = list_to_atom(atom_to_list(?MODULE)
++ "-"
++ atom_to_list(?config(testcase, Config))
++ "-"
- ++ integer_to_list(A)
+ ++ integer_to_list(erlang:system_time(seconds))
++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)),
+ ++ integer_to_list(erlang:unique_integer([positive]))),
?line ?t:start_node(Name, slave, [{args, "-pa "++Pa}]).
stop_node(Node) ->
diff --git a/erts/emulator/test/gc_SUITE.erl b/erts/emulator/test/gc_SUITE.erl
index 36889b6c36..1b92e3198e 100644
--- a/erts/emulator/test/gc_SUITE.erl
+++ b/erts/emulator/test/gc_SUITE.erl
@@ -77,7 +77,7 @@ grow_heap1(List, MaxLen, CurLen, up) ->
grow_heap1([], _MaxLen, _, down) ->
ok;
grow_heap1([_|List], MaxLen, CurLen, down) ->
- {_,_,C} = erlang:now(),
+ C=erlang:unique_integer([positive]),
Num = C rem (length(List))+1,
Elem = lists:nth(Num, List),
NewList = lists:delete(Elem, List),
@@ -136,7 +136,7 @@ grow_stack_heap1(List, MaxLen, CurLen, up) ->
grow_stack_heap1([], _MaxLen, _, down) -> ok;
grow_stack_heap1([_|List], MaxLen, CurLen, down) ->
grow_stack1(CurLen*2,0),
- {_,_,C}=erlang:now(),
+ C=erlang:unique_integer([positive]),
Num=C rem (length(List))+1,
Elem=lists:nth(Num, List),
NewList=lists:delete(Elem, List),
@@ -146,8 +146,8 @@ grow_stack_heap1([_|List], MaxLen, CurLen, down) ->
%% Create an arbitrary element/term.
make_arbit() ->
- {AA,BB,CC}=erlang:now(),
- A=AA+1, B=BB+1, C=CC+1,
+ {AA,BB,CC}=erlang:timestamp(),
+ A=AA+1, B=BB+1, C=(CC+erlang:unique_integer([positive])) rem 1000000 + 1,
New =
case C rem 9 of
0 -> make_string((B div C) +5);
@@ -171,7 +171,7 @@ make_string(Length) ->
make_string(_, 0, Acc) ->
Acc;
make_string(Alph, Length, Acc) ->
- {_,_,C}=erlang:now(),
+ C=erlang:unique_integer([positive]),
Pos=1+(Length*C rem length(Alph)),
make_string(Alph, Length-1,
[lists:nth(Pos,Alph)|Acc]).
diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl
index 39549282c0..527b6987fa 100644
--- a/erts/emulator/test/map_SUITE.erl
+++ b/erts/emulator/test/map_SUITE.erl
@@ -1508,7 +1508,9 @@ t_map_equal(Config) when is_list(Config) ->
t_map_compare(Config) when is_list(Config) ->
- Seed = erlang:now(),
+ Seed = {erlang:monotonic_time(),
+ erlang:time_offset(),
+ erlang:unique_integer()},
io:format("seed = ~p\n", [Seed]),
random:seed(Seed),
repeat(100, fun(_) -> float_int_compare() end, []),
diff --git a/erts/emulator/test/module_info_SUITE.erl b/erts/emulator/test/module_info_SUITE.erl
index f3986f0c4f..1125cf3072 100644
--- a/erts/emulator/test/module_info_SUITE.erl
+++ b/erts/emulator/test/module_info_SUITE.erl
@@ -94,12 +94,15 @@ functions(Config) when is_list(Config) ->
ok.
%% Test that the list of exported functions from this module is correct.
+%% Verify that module_info(native) works.
native(Config) when is_list(Config) ->
?line All = all_functions(),
?line case ?MODULE:module_info(native_addresses) of
[] ->
+ ?line false = ?MODULE:module_info(native),
{comment,"no native functions"};
L ->
+ ?line true = ?MODULE:module_info(native),
%% Verify that all functions have unique addresses.
?line S0 = sofs:set(L, [{name,arity,addr}]),
?line S1 = sofs:projection({external,fun ?MODULE:native_proj/1}, S0),
diff --git a/erts/emulator/test/monitor_SUITE.erl b/erts/emulator/test/monitor_SUITE.erl
index 07e2862b2a..dc215b1529 100644
--- a/erts/emulator/test/monitor_SUITE.erl
+++ b/erts/emulator/test/monitor_SUITE.erl
@@ -763,12 +763,10 @@ named_down(doc) -> ["Test that DOWN message for a named monitor isn't"
" delivered until name has been unregistered"];
named_down(suite) -> [];
named_down(Config) when is_list(Config) ->
- ?line {A,B,C} = now(),
?line Name = list_to_atom(atom_to_list(?MODULE)
++ "-named_down-"
- ++ integer_to_list(A)
- ++ "-" ++ integer_to_list(B)
- ++ "-" ++ integer_to_list(C)),
+ ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-" ++ integer_to_list(erlang:unique_integer([positive]))),
?line Prio = process_flag(priority,high),
%% Spawn a bunch of high prio cpu bound processes to prevent
%% normal prio processes from terminating during the next
diff --git a/erts/emulator/test/mtx_SUITE.erl b/erts/emulator/test/mtx_SUITE.erl
index a492501959..8dcd21f303 100644
--- a/erts/emulator/test/mtx_SUITE.erl
+++ b/erts/emulator/test/mtx_SUITE.erl
@@ -441,10 +441,10 @@ hammer_ets_rwlock_test(XOpts, UW, C, N, NP, SC) ->
receive after infinity -> ok end
end) | Ps0]
end,
- Start = now(),
+ Start = erlang:monotonic_time(),
lists:foreach(fun (P) -> P ! go end, Ps),
lists:foreach(fun (P) -> receive {done, P} -> ok end end, Ps),
- Stop = now(),
+ Stop = erlang:monotonic_time(),
lists:foreach(fun (P) ->
unlink(P),
exit(P, bang),
@@ -453,7 +453,7 @@ hammer_ets_rwlock_test(XOpts, UW, C, N, NP, SC) ->
{'DOWN', M, process, P, _} -> ok
end
end, Ps),
- Res = timer:now_diff(Stop, Start)/1000000,
+ Res = (Stop-Start)/erlang:convert_time_unit(1,seconds,native),
Caller ! {?MODULE, self(), Res}
end,
TP = spawn_link(T),
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index 502ada95a1..c35c71dd5b 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -1190,7 +1190,9 @@ send3(Config) when is_list(Config) ->
%% Let a number of processes send random message blobs between each other
%% using enif_send. Kill and spawn new ones randomly to keep a ~constant
%% number of workers running.
- Seed = now(),
+ Seed = {erlang:monotonic_time(),
+ erlang:time_offset(),
+ erlang:unique_integer()},
io:format("seed: ~p\n",[Seed]),
random:seed(Seed),
ets:new(nif_SUITE,[named_table,public]),
diff --git a/erts/emulator/test/node_container_SUITE.erl b/erts/emulator/test/node_container_SUITE.erl
index 9c1839811a..2f505893b4 100644
--- a/erts/emulator/test/node_container_SUITE.erl
+++ b/erts/emulator/test/node_container_SUITE.erl
@@ -1120,26 +1120,18 @@ wait_until(Pred) ->
false -> receive after 100 -> wait_until(Pred) end
end.
+get_nodefirstname_string() ->
+ atom_to_list(?MODULE)
+ ++ "-"
+ ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-"
+ ++ integer_to_list(erlang:unique_integer([positive])).
get_nodefirstname() ->
- {A, B, C} = now(),
- list_to_atom(atom_to_list(?MODULE)
- ++ "-"
- ++ integer_to_list(A)
- ++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)).
+ list_to_atom(get_nodefirstname_string()).
get_nodename() ->
- {A, B, C} = now(),
- list_to_atom(atom_to_list(?MODULE)
- ++ "-"
- ++ integer_to_list(A)
- ++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)
+ list_to_atom(get_nodefirstname_string()
++ "@"
++ hostname()).
diff --git a/erts/emulator/test/old_scheduler_SUITE.erl b/erts/emulator/test/old_scheduler_SUITE.erl
index 262536a068..57f6928185 100644
--- a/erts/emulator/test/old_scheduler_SUITE.erl
+++ b/erts/emulator/test/old_scheduler_SUITE.erl
@@ -116,7 +116,7 @@ equal(Config) when is_list(Config) ->
%% start controllers
?line Receiver =
- spawn(fun() -> receiver(now(), Time, Self, Normal, Low) end),
+ spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Normal, Low) end),
?line Starter =
spawn(fun() -> starter(Normal, Low, Receiver) end),
@@ -154,7 +154,7 @@ many_low(Config) when is_list(Config) ->
Time = 30,
?line Receiver =
- spawn(fun() -> receiver(now(), Time, Self, Normal, Low) end),
+ spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Normal, Low) end),
?line Starter =
spawn(fun() -> starter(Normal, Low, Receiver) end),
?line {NRs,NAvg,LRs,LAvg,Ratio} =
@@ -185,7 +185,7 @@ few_low(Config) when is_list(Config) ->
Time = 30,
?line Receiver =
- spawn(fun() -> receiver(now(), Time, Self, Normal, Low) end),
+ spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Normal, Low) end),
?line Starter =
spawn(fun() -> starter(Normal, Low, Receiver) end),
?line {NRs,NAvg,LRs,LAvg,Ratio} =
@@ -220,7 +220,7 @@ max(Config) when is_list(Config) ->
Time = 30,
?line Receiver1 =
- spawn(fun() -> receiver(now(), Time, Self, Max, High) end),
+ spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Max, High) end),
?line Starter1 =
spawn(fun() -> starter(Max, High, Receiver1) end),
?line {M1Rs,M1Avg,HRs,HAvg,Ratio1} =
@@ -238,7 +238,7 @@ max(Config) when is_list(Config) ->
end,
?line Receiver2 =
- spawn(fun() -> receiver(now(), Time, Self, Max, Normal) end),
+ spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Max, Normal) end),
?line Starter2 =
spawn(fun() -> starter(Max, Normal, Receiver2) end),
?line {M2Rs,M2Avg,NRs,NAvg,Ratio2} =
@@ -256,7 +256,7 @@ max(Config) when is_list(Config) ->
end,
?line Receiver3 =
- spawn(fun() -> receiver(now(), Time, Self, Max, Low) end),
+ spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Max, Low) end),
?line Starter3 =
spawn(fun() -> starter(Max, Low, Receiver3) end),
?line {M3Rs,M3Avg,LRs,LAvg,Ratio3} =
@@ -290,7 +290,7 @@ high(Config) when is_list(Config) ->
Time = 30,
?line Receiver1 =
- spawn(fun() -> receiver(now(), Time, Self, High, Normal) end),
+ spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, High, Normal) end),
?line Starter1 =
spawn(fun() -> starter(High, Normal, Receiver1) end),
?line {H1Rs,H1Avg,NRs,NAvg,Ratio1} =
@@ -308,7 +308,7 @@ high(Config) when is_list(Config) ->
end,
?line Receiver2 =
- spawn(fun() -> receiver(now(), Time, Self, High, Low) end),
+ spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, High, Low) end),
?line Starter2 =
spawn(fun() -> starter(High, Low, Receiver2) end),
?line {H2Rs,H2Avg,LRs,LAvg,Ratio2} =
@@ -337,12 +337,13 @@ receiver(T0, TimeSec, Main, {P1,P1N}, {P2,P2N}) ->
%% uncomment lines below to get life sign (debug)
receiver(T0, Time, Main, P1,P1N,P1Rs, P2,P2N,P2Rs, 0) ->
-% T = elapsed_ms(T0, now()),
+% T = erlang:convert_time_unit(erlang:monotonic_time() - T0, native, milli_seconds),
% erlang:display({round(T/1000),P1Rs,P2Rs}),
receiver(T0, Time, Main, P1,P1N,P1Rs, P2,P2N,P2Rs, 100000);
receiver(T0, Time, Main, P1,P1N,P1Rs, P2,P2N,P2Rs, C) ->
- Remain = Time - elapsed_ms(T0, now()), % test time remaining
+ Remain = Time - erlang:convert_time_unit(erlang:monotonic_time() - T0,
+ native, milli_seconds), % test time remaining
Remain1 = if Remain < 0 ->
0;
true ->
@@ -409,6 +410,3 @@ flush_loop() ->
ok
end,
flush_loop().
-
-elapsed_ms({_MS0,S0,MuS0},{_MS1,S1,MuS1}) ->
- round(((S1-S0)*1000)+((MuS1-MuS0)/1000)).
diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl
index 6bbf93b7d7..e61c330861 100644
--- a/erts/emulator/test/port_SUITE.erl
+++ b/erts/emulator/test/port_SUITE.erl
@@ -1815,7 +1815,7 @@ exit_status_msb_test(Config, SleepSecs) when is_list(Config) ->
Parent = self(),
?t:format("SleepSecs = ~p~n", [SleepSecs]),
PortProg = "sleep " ++ integer_to_list(SleepSecs),
- Start = now(),
+ Start = erlang:monotonic_time(micro_seconds),
NoProcs = case NoSchedsOnln of
NProcs when NProcs < ?EXIT_STATUS_MSB_MAX_PROCS ->
NProcs;
@@ -1887,12 +1887,12 @@ exit_status_msb_test(Config, SleepSecs) when is_list(Config) ->
receive {P, started, SIds} -> SIds end
end,
Procs),
- StartedTime = timer:now_diff(now(), Start)/1000000,
+ StartedTime = (erlang:monotonic_time(micro_seconds) - Start)/1000000,
?t:format("StartedTime = ~p~n", [StartedTime]),
true = StartedTime < SleepSecs,
erlang:system_flag(multi_scheduling, block),
lists:foreach(fun (P) -> receive {P, done} -> ok end end, Procs),
- DoneTime = timer:now_diff(now(), Start)/1000000,
+ DoneTime = (erlang:monotonic_time(micro_seconds) - Start)/1000000,
?t:format("DoneTime = ~p~n", [DoneTime]),
true = DoneTime > SleepSecs,
ok = verify_multi_scheduling_blocked(),
diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl
index bf31655066..105d39f126 100644
--- a/erts/emulator/test/process_SUITE.erl
+++ b/erts/emulator/test/process_SUITE.erl
@@ -379,16 +379,15 @@ eat_high(Low) ->
process_flag(priority, high),
receive after 1000 -> ok end,
exit(Low, {you, are, dead}),
- {_, Sec, _} = now(),
- loop(Sec, Sec).
+ loop(erlang:monotonic_time() + erlang:convert_time_unit(5,seconds,native)).
%% Busy loop for 5 seconds.
-loop(OrigSec, CurrentSec) when CurrentSec < OrigSec+5 ->
- {_, NewSec, _} = now(),
- loop(OrigSec, NewSec);
-loop(_, _) ->
- ok.
+loop(StopTime) ->
+ case StopTime >= erlang:monotonic_time() of
+ true -> ok;
+ false -> loop(StopTime)
+ end.
%% Tries to send two different exit messages to a process.
@@ -2450,16 +2449,13 @@ start_node(Config) ->
start_node(Config, Args) when is_list(Config) ->
Pa = filename:dirname(code:which(?MODULE)),
- {A, B, C} = now(),
Name = list_to_atom(atom_to_list(?MODULE)
++ "-"
++ atom_to_list(?config(testcase, Config))
++ "-"
- ++ integer_to_list(A)
- ++ "-"
- ++ integer_to_list(B)
+ ++ integer_to_list(erlang:system_time(seconds))
++ "-"
- ++ integer_to_list(C)),
+ ++ integer_to_list(erlang:unique_integer([positive]))),
?t:start_node(Name, slave, [{args, "-pa "++Pa++" "++Args}]).
stop_node(Node) ->
diff --git a/erts/emulator/test/scheduler_SUITE.erl b/erts/emulator/test/scheduler_SUITE.erl
index 3906471f87..c5af12c6d1 100644
--- a/erts/emulator/test/scheduler_SUITE.erl
+++ b/erts/emulator/test/scheduler_SUITE.erl
@@ -1829,11 +1829,11 @@ do_it(Tracer, Low, Normal, High, Max) ->
do_it(Tracer, Low, Normal, High, Max, RedsPerSchedLimit) ->
OldPrio = process_flag(priority, max),
go_work(Low, Normal, High, Max),
- StartWait = now(),
+ StartWait = erlang:monotonic_time(milli_seconds),
%% Give the emulator a chance to balance the load...
wait_balance(5),
- EndWait = now(),
- BalanceWait = timer:now_diff(EndWait,StartWait) div 1000,
+ EndWait = erlang:monotonic_time(milli_seconds),
+ BalanceWait = EndWait-StartWait,
erlang:display({balance_wait, BalanceWait}),
Timeout = ?DEFAULT_TIMEOUT - ?t:minutes(4) - BalanceWait,
Res = case Timeout < ?MIN_SCHEDULER_TEST_TIMEOUT of
@@ -2027,17 +2027,14 @@ start_node(Config) ->
start_node(Config, "").
start_node(Config, Args) when is_list(Config) ->
- ?line Pa = filename:dirname(code:which(?MODULE)),
- ?line {A, B, C} = now(),
- ?line Name = list_to_atom(atom_to_list(?MODULE)
- ++ "-"
- ++ atom_to_list(?config(testcase, Config))
- ++ "-"
- ++ integer_to_list(A)
- ++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)),
+ Pa = filename:dirname(code:which(?MODULE)),
+ Name = list_to_atom(atom_to_list(?MODULE)
+ ++ "-"
+ ++ atom_to_list(?config(testcase, Config))
+ ++ "-"
+ ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-"
+ ++ integer_to_list(erlang:unique_integer([positive]))),
?line ?t:start_node(Name, slave, [{args, "-pa "++Pa++" "++Args}]).
stop_node(Node) ->
diff --git a/erts/emulator/test/signal_SUITE.erl b/erts/emulator/test/signal_SUITE.erl
index 736dfe5b56..dcb10c947e 100644
--- a/erts/emulator/test/signal_SUITE.erl
+++ b/erts/emulator/test/signal_SUITE.erl
@@ -515,12 +515,10 @@ repeat(Fun, N) when is_integer(N) ->
repeat(Fun, N-1).
start_node(Config) ->
- {A, B, C} = now(),
Name = list_to_atom(atom_to_list(?MODULE)
++ "-" ++ atom_to_list(?config(testcase, Config))
- ++ "-" ++ integer_to_list(A)
- ++ "-" ++ integer_to_list(B)
- ++ "-" ++ integer_to_list(C)),
+ ++ "-" ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-" ++ integer_to_list(erlang:unique_integer([positive]))),
Pa = filename:dirname(code:which(?MODULE)),
?t:start_node(Name, slave, [{args, "-pa " ++ Pa}]).
diff --git a/erts/emulator/test/smoke_test_SUITE.erl b/erts/emulator/test/smoke_test_SUITE.erl
index 10b7e16a74..4c50b8ba8c 100644
--- a/erts/emulator/test/smoke_test_SUITE.erl
+++ b/erts/emulator/test/smoke_test_SUITE.erl
@@ -167,16 +167,13 @@ start_node(Config) ->
start_node(Config, Args) when is_list(Config) ->
Pa = filename:dirname(code:which(?MODULE)),
- {A, B, C} = now(),
Name = list_to_atom(atom_to_list(?MODULE)
++ "-"
++ atom_to_list(?config(testcase, Config))
++ "-"
- ++ integer_to_list(A)
+ ++ integer_to_list(erlang:system_time(seconds))
++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)),
+ ++ integer_to_list(erlang:unique_integer([positive]))),
Opts = [{args, "-pa "++Pa++" "++Args}],
?t:start_node(Name, slave, Opts).
diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl
index f959714be7..0fd6696536 100644
--- a/erts/emulator/test/system_info_SUITE.erl
+++ b/erts/emulator/test/system_info_SUITE.erl
@@ -533,16 +533,13 @@ get_ets_limit(Config, EtsMax) ->
start_node(Config, Envs) when is_list(Config) ->
Pa = filename:dirname(code:which(?MODULE)),
- {A, B, C} = now(),
Name = list_to_atom(atom_to_list(?MODULE)
++ "-"
++ atom_to_list(?config(testcase, Config))
++ "-"
- ++ integer_to_list(A)
+ ++ integer_to_list(erlang:system_time(seconds))
++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)),
+ ++ integer_to_list(erlang:unique_integer([positive]))),
?t:start_node(Name, peer, [{args, "-pa "++Pa}, {env, Envs}]).
stop_node(Node) ->
diff --git a/erts/emulator/test/time_SUITE.erl b/erts/emulator/test/time_SUITE.erl
index 43f7ac7f7c..d04a95b10e 100644
--- a/erts/emulator/test/time_SUITE.erl
+++ b/erts/emulator/test/time_SUITE.erl
@@ -18,6 +18,7 @@
%%
-module(time_SUITE).
+-compile({nowarn_deprecated_function, {erlang,now,0}}).
%% "Time is on my side." -- The Rolling Stones
@@ -37,6 +38,7 @@
now_unique/1, now_update/1, timestamp/1,
time_warp_modes/1,
monotonic_time_monotonicity/1,
+ monotonic_time_monotonicity_parallel/1,
time_unit_conversion/1,
signed_time_unit_conversion/1,
erlang_timestamp/1]).
@@ -79,6 +81,7 @@ all() ->
{group, now}, timestamp,
time_warp_modes,
monotonic_time_monotonicity,
+ monotonic_time_monotonicity_parallel,
time_unit_conversion,
signed_time_unit_conversion,
erlang_timestamp].
@@ -565,6 +568,78 @@ cmp_times(Done, X0) ->
cmp_times(Done, X5)
end.
+-define(NR_OF_MONOTONIC_CALLS, 100000).
+
+monotonic_time_monotonicity_parallel(Config) when is_list(Config) ->
+ Me = self(),
+ Result = make_ref(),
+ Go = make_ref(),
+ UpAndRunning = make_ref(),
+ NoOnlnScheds = erlang:system_info(schedulers_online),
+ OffsetUI = erlang:unique_integer([monotonic]),
+ OffsetMT = erlang:monotonic_time(),
+ MinHSz = ?NR_OF_MONOTONIC_CALLS*(2
+ + 3
+ + erts_debug:flat_size(OffsetUI)
+ + erts_debug:flat_size(OffsetMT)),
+ Ps = lists:map(
+ fun (Sched) ->
+ spawn_opt(
+ fun () ->
+ Me ! {self(), UpAndRunning},
+ receive Go -> ok end,
+ Res = fetch_monotonic(?NR_OF_MONOTONIC_CALLS, []),
+ Me ! {self(), Result, Sched, Res}
+ end,
+ [{scheduler, Sched},
+ {priority, max},
+ {min_heap_size, MinHSz}])
+ end,
+ lists:seq(1, NoOnlnScheds)),
+ lists:foreach(fun (P) -> receive {P, UpAndRunning} -> ok end end, Ps),
+ lists:foreach(fun (P) -> P ! Go end, Ps),
+ TMs = recv_monotonics(Result, OffsetMT, OffsetUI, NoOnlnScheds, []),
+ true = check_monotonic_result(TMs, OffsetMT, OffsetUI, true).
+
+check_monotonic_result([{_Sched, _PrevUI, _MT, _PostUI}],
+ _OffsetMT, _OffsetUI, Res) ->
+ Res;
+check_monotonic_result([{_ASched, _APrevUI, AMT, APostUI} = A,
+ {_BSched, BPrevUI, BMT, _BPostUI} = B | _] = L,
+ OffsetMT, OffsetUI, Res) ->
+ NewRes = case (AMT =< BMT) orelse (BPrevUI < APostUI) of
+ true ->
+ Res;
+ false ->
+ io:format("INCONSISTENCY: ~p ~p~n", [A, B]),
+ false
+ end,
+ check_monotonic_result(tl(L), OffsetMT, OffsetUI, NewRes).
+
+recv_monotonics(_Result, _OffsetMT, _OffsetUI, 0, Acc) ->
+ lists:keysort(2, Acc);
+recv_monotonics(Result, OffsetMT, OffsetUI, N, Acc) ->
+ receive
+ {_, Result, Sched, Res} ->
+ CRes = convert_monotonic(Sched, OffsetMT, OffsetUI, Res, []),
+ recv_monotonics(Result, OffsetMT, OffsetUI, N-1, CRes ++ Acc)
+ end.
+
+convert_monotonic(_Sched, _OffsetMT, _OffsetUI, [{_MT, _UI}], Acc) ->
+ Acc;
+convert_monotonic(Sched, OffsetMT, OffsetUI,
+ [{MT, UI}, {_PrevMT, PrevUI} | _] = L, Acc) ->
+ convert_monotonic(Sched, OffsetMT, OffsetUI, tl(L),
+ [{Sched, PrevUI-OffsetUI, MT-OffsetMT, UI-OffsetUI}
+ | Acc]).
+
+fetch_monotonic(0, Acc) ->
+ Acc;
+fetch_monotonic(N, Acc) ->
+ MT = erlang:monotonic_time(),
+ UI = erlang:unique_integer([monotonic]),
+ fetch_monotonic(N-1, [{MT, UI} | Acc]).
+
-define(CHK_RES_CONVS_TIMEOUT, 400).
time_unit_conversion(Config) when is_list(Config) ->
diff --git a/erts/emulator/test/timer_bif_SUITE.erl b/erts/emulator/test/timer_bif_SUITE.erl
index 56a1cef761..3701dd8437 100644
--- a/erts/emulator/test/timer_bif_SUITE.erl
+++ b/erts/emulator/test/timer_bif_SUITE.erl
@@ -502,9 +502,10 @@ get_msg() ->
end.
start_slave() ->
- ?line {A, B, C} = now(),
?line Pa = filename:dirname(code:which(?MODULE)),
- ?line Name = atom_to_list(?MODULE) ++ "-" ++ integer_to_list(A+B+C),
+ ?line Name = atom_to_list(?MODULE)
+ ++ "-" ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-" ++ integer_to_list(erlang:unique_integer([positive])),
{ok, Node} = ?t:start_node(Name, slave, [{args, "-pa " ++ Pa}]),
Node.
diff --git a/erts/emulator/test/trace_call_time_SUITE.erl b/erts/emulator/test/trace_call_time_SUITE.erl
index 3036d2957b..9c444ed682 100644
--- a/erts/emulator/test/trace_call_time_SUITE.erl
+++ b/erts/emulator/test/trace_call_time_SUITE.erl
@@ -326,10 +326,10 @@ combo(Config) when is_list(Config) ->
%%
?line [3,2,1] = seq_r(1, 3, fun(X) -> X+1 end),
- ?line T0 = now(),
+ ?line T0 = erlang:monotonic_time(),
?line with_bif(Nbc),
- ?line T1 = now(),
- ?line TimeB = timer:now_diff(T1,T0),
+ ?line T1 = erlang:monotonic_time(),
+ ?line TimeB = erlang:convert_time_unit(T1-T0, native, micro_seconds),
%%
?line List = collect(100),
@@ -695,17 +695,17 @@ setup(Opts) ->
Pid.
execute(Pids, Mfa) when is_list(Pids) ->
- T0 = now(),
+ T0 = erlang:monotonic_time(),
[P ! {self(), execute, Mfa} || P <- Pids],
As = [receive {P, answer, Answer} -> Answer end || P <- Pids],
- T1 = now(),
- {As, timer:now_diff(T1,T0)};
+ T1 = erlang:monotonic_time(),
+ {As, erlang:convert_time_unit(T1-T0, native, micro_seconds)};
execute(P, Mfa) ->
- T0 = now(),
+ T0 = erlang:monotonic_time(),
P ! {self(), execute, Mfa},
A = receive {P, answer, Answer} -> Answer end,
- T1 = now(),
- {A, timer:now_diff(T1,T0)}.
+ T1 = erlang:monotonic_time(),
+ {A, erlang:convert_time_unit(T1-T0, native, micro_seconds)}.