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-rw-r--r--lib/mnesia/test/mnesia_dbn_meters.erl74
1 files changed, 36 insertions, 38 deletions
diff --git a/lib/mnesia/test/mnesia_dbn_meters.erl b/lib/mnesia/test/mnesia_dbn_meters.erl
index feaf90ee75..5c3ea08a1d 100644
--- a/lib/mnesia/test/mnesia_dbn_meters.erl
+++ b/lib/mnesia/test/mnesia_dbn_meters.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/.
+%% 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
%%
-%% 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.
+%% 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%
%%
@@ -92,7 +93,7 @@ some_meters() ->
report_meter(Meter) ->
Times = 100,
Micros = repeat_meter(Meter,{atomic,{0,ignore}},Times) div Times,
- io:format("\t~-30w ~-10w micro seconds (mean of ~p repetitions)~n",[Meter,Micros,Times]).
+ io:format("\t~-30w ~-10w nano seconds (mean of ~p repetitions)~n",[Meter,Micros,Times]).
repeat_meter(_Meter,{atomic,{Micros,_Result}},0) ->
Micros;
@@ -109,9 +110,9 @@ meter(create) ->
Key = 1,
mnesia:transaction(fun() -> mnesia:delete({simple,Key}) end),
Fun = fun() ->
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
R = mnesia:write(#simple{key=Key}),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
elapsed_time(BeforeT,AfterT,R)
end,
mnesia:transaction(Fun);
@@ -120,9 +121,9 @@ meter(open_safe_read) ->
Key = 2,
mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end),
Fun = fun() ->
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
R = mnesia:read({simple,Key}),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
elapsed_time(BeforeT,AfterT,R)
end,
mnesia:transaction(Fun);
@@ -131,9 +132,9 @@ meter(open_dirty_read) ->
Key = 21,
mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end),
Fun = fun() ->
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
R = mnesia:dirty_read({simple,Key}),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
elapsed_time(BeforeT,AfterT,R)
end,
mnesia:transaction(Fun);
@@ -143,9 +144,9 @@ meter(get_int) ->
mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end),
Fun = fun() ->
[Simple] = mnesia:read({simple,Key}),
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
Int = Simple#simple.val,
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
elapsed_time(BeforeT,AfterT,Int)
end,
mnesia:transaction(Fun);
@@ -154,9 +155,9 @@ meter(open_update) ->
Key = 3,
mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end),
Fun = fun() ->
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
R = mnesia:wread({simple,Key}),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
elapsed_time(BeforeT,AfterT,R)
end,
mnesia:transaction(Fun);
@@ -166,9 +167,9 @@ meter(put_int) ->
mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end),
Fun = fun() ->
[Simple] = mnesia:wread({simple,Key}),
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
R = Simple#simple{val=7},
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
elapsed_time(BeforeT,AfterT,R)
end,
mnesia:transaction(Fun);
@@ -178,10 +179,10 @@ meter(put_int_and_copy) ->
mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end),
Fun = fun() ->
[Simple] = mnesia:wread({simple,Key}),
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
Simple2 = Simple#simple{val=17},
R = mnesia:write(Simple2),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
elapsed_time(BeforeT,AfterT,R)
end,
mnesia:transaction(Fun);
@@ -190,15 +191,15 @@ meter(dirty_put_int_and_copy) ->
Key = 55,
mnesia:dirty_write(#simple{key=Key}),
[Simple] = mnesia:dirty_read({simple,Key}),
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
Simple2 = Simple#simple{val=17},
R = mnesia:dirty_write(Simple2),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
{atomic,elapsed_time(BeforeT,AfterT,R)};
meter(start_trans) ->
- BeforeT = erlang:now(),
- {atomic,AfterT} = mnesia:transaction(fun() -> erlang:now() end),
+ BeforeT = erlang:monotonic_time(),
+ {atomic,AfterT} = mnesia:transaction(fun() -> erlang:monotonic_time() end),
{atomic,elapsed_time(BeforeT,AfterT,ok)};
meter(commit_one_update) ->
@@ -208,19 +209,19 @@ meter(commit_one_update) ->
[Simple] = mnesia:wread({simple,Key}),
Simple2 = Simple#simple{val=27},
_R = mnesia:write(Simple2),
- erlang:now()
+ erlang:monotonic_time()
end,
{atomic,BeforeT} = mnesia:transaction(Fun),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
{atomic,elapsed_time(BeforeT,AfterT,ok)};
meter(delete) ->
Key = 7,
mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end),
Fun = fun() ->
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
R = mnesia:delete({simple,Key}),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
elapsed_time(BeforeT,AfterT,R)
end,
mnesia:transaction(Fun);
@@ -228,15 +229,12 @@ meter(delete) ->
meter(dirty_delete) ->
Key = 75,
mnesia:dirty_write(#simple{key=Key}),
- BeforeT = erlang:now(),
+ BeforeT = erlang:monotonic_time(),
R = mnesia:dirty_delete({simple,Key}),
- AfterT = erlang:now(),
+ AfterT = erlang:monotonic_time(),
{atomic, elapsed_time(BeforeT,AfterT,R)}.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Calculate the elapsed time
elapsed_time(BeforeT,AfterT,Result) ->
- {(element(1,AfterT)*1000000000000
- +element(2,AfterT)*1000000+element(3,AfterT)) -
- (element(1,BeforeT)*1000000000000
- +element(2,BeforeT)*1000000+element(3,BeforeT)),Result}.
+ {erlang:convert_time_unit(AfterT-BeforeT, native, nano_seconds),Result}.
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-10 19:48:21 +0000