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-rw-r--r--lib/mnesia/test/mnesia_cost.erl31
1 files changed, 14 insertions, 17 deletions
diff --git a/lib/mnesia/test/mnesia_cost.erl b/lib/mnesia/test/mnesia_cost.erl
index 3221f46f61..714dbaef27 100644
--- a/lib/mnesia/test/mnesia_cost.erl
+++ b/lib/mnesia/test/mnesia_cost.erl
@@ -3,16 +3,17 @@
%%
%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
%%
%% %CopyrightEnd%
%%
@@ -107,11 +108,11 @@ run(What, OtherInfo, Ops, F) ->
run(t, What, OtherInfo, Ops, F).
run(How, What, OtherInfo, Ops, F) ->
- T1 = erlang:now(),
+ T1 = erlang:monotonic_time(),
statistics(runtime),
do_times(How, ?TIMES, F),
{_, RunTime} = statistics(runtime),
- T2 = erlang:now(),
+ T2 = erlang:monotonic_time(),
RealTime = subtr(T1, T2),
report(How, What, OtherInfo, Ops, RunTime, RealTime).
@@ -139,11 +140,7 @@ report(dirty, What, OtherInfo, Ops, RunTime, RealTime) ->
subtr(Before, After) ->
- E =(element(1,After)*1000000000000
- +element(2,After)*1000000+element(3,After)) -
- (element(1,Before)*1000000000000
- +element(2,Before)*1000000+element(3,Before)),
- E div 1000.
+ erlang:convert_time_unit(After-Before, native, milli_seconds).
do_times(t, I, F) ->
do_trans_times(I, F);