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-rw-r--r--lib/stdlib/test/ets_SUITE.erl17
-rw-r--r--lib/stdlib/test/io_proto_SUITE.erl3
-rw-r--r--lib/stdlib/test/timer_SUITE.erl4
-rw-r--r--lib/stdlib/test/timer_simple_SUITE.erl3
4 files changed, 9 insertions, 18 deletions
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl
index 084cc36ae3..cf3e53c0cd 100644
--- a/lib/stdlib/test/ets_SUITE.erl
+++ b/lib/stdlib/test/ets_SUITE.erl
@@ -4552,16 +4552,16 @@ build_table2(L1,L2,Num) ->
T.
time_match_object(Tab,Match, Res) ->
- T1 = erlang:now(),
+ T1 = erlang:monotonic_time(micro_seconds),
Res = ets:match_object(Tab,Match),
- T2 = erlang:now(),
- nowdiff(T1,T2).
+ T2 = erlang:monotonic_time(micro_seconds),
+ T2 - T1.
time_match(Tab,Match) ->
- T1 = erlang:now(),
+ T1 = erlang:monotonic_time(micro_seconds),
ets:match(Tab,Match),
- T2 = erlang:now(),
- nowdiff(T1,T2).
+ T2 = erlang:monotonic_time(micro_seconds),
+ T2 - T1.
seventyfive_percent_success(_,S,Fa,0) ->
true = (S > ((S + Fa) * 0.75));
@@ -4586,11 +4586,6 @@ fifty_percent_success({M,F,A},S,Fa,N) ->
end.
-nowtonumber({Mega, Secs, Milli}) ->
- Milli + Secs * 1000000 + Mega * 1000000000000.
-nowdiff(T1,T2) ->
- nowtonumber(T2) - nowtonumber(T1).
-
create_random_string(0) ->
[];
diff --git a/lib/stdlib/test/io_proto_SUITE.erl b/lib/stdlib/test/io_proto_SUITE.erl
index 463b12535d..858a78b1d2 100644
--- a/lib/stdlib/test/io_proto_SUITE.erl
+++ b/lib/stdlib/test/io_proto_SUITE.erl
@@ -1766,8 +1766,7 @@ toerl_loop(Port,Acc) ->
end.
millistamp() ->
- {Mega, Secs, Micros} = erlang:now(),
- (Micros div 1000) + Secs * 1000 + Mega * 1000000000.
+ erlang:monotonic_time(milli_seconds).
get_data_within(Port, X, Acc) when X =< 0 ->
?dbg({get_data_within, X, Acc, ?LINE}),
diff --git a/lib/stdlib/test/timer_SUITE.erl b/lib/stdlib/test/timer_SUITE.erl
index 6ece2e897f..ae32d98807 100644
--- a/lib/stdlib/test/timer_SUITE.erl
+++ b/lib/stdlib/test/timer_SUITE.erl
@@ -361,9 +361,7 @@ res_combine({error,Es}, [{error,E}|T]) ->
system_time() ->
- %%element(1, statistics(wall_clock)).
- {M,S,U} = erlang:now(),
- 1000000000 * M + 1000 * S + (U div 1000).
+ erlang:monotonic_time(milli_seconds).
%% ------------------------------------------------------- %%
diff --git a/lib/stdlib/test/timer_simple_SUITE.erl b/lib/stdlib/test/timer_simple_SUITE.erl
index 917624b56b..3c7e3c5f25 100644
--- a/lib/stdlib/test/timer_simple_SUITE.erl
+++ b/lib/stdlib/test/timer_simple_SUITE.erl
@@ -482,8 +482,7 @@ append([],X) ->
X.
system_time() ->
- {M,S,U} = erlang:now(),
- 1000000*(M*1000000 + S) + U.
+ erlang:monotonic_time(micro_seconds).
%% ------------------------------------------------------- %%