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-rw-r--r--erts/emulator/test/erts_debug_SUITE.erl92
1 files changed, 65 insertions, 27 deletions
diff --git a/erts/emulator/test/erts_debug_SUITE.erl b/erts/emulator/test/erts_debug_SUITE.erl
index e5c904cfb9..35677f9953 100644
--- a/erts/emulator/test/erts_debug_SUITE.erl
+++ b/erts/emulator/test/erts_debug_SUITE.erl
@@ -3,16 +3,17 @@
%%
%% Copyright Ericsson AB 2005-2012. 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%
%%
@@ -71,6 +72,11 @@ test_size(Config) when is_list(Config) ->
4 = do_test_size(#{}),
32 = do_test_size(#{b => 2,c => 3,txt => "hello world"}),
+ true = do_test_size(maps:from_list([{I,I}||I<-lists:seq(1,256)])) >= map_size_lower_bound(256),
+ true = do_test_size(maps:from_list([{I,I}||I<-lists:seq(1,4096)])) >= map_size_lower_bound(4096),
+ true = do_test_size(maps:from_list([{I,I}||I<-lists:seq(1,254)])) >= map_size_lower_bound(254),
+ true = do_test_size(maps:from_list([{I,I}||I<-lists:seq(1,239)])) >= map_size_lower_bound(239),
+
%% Test internal consistency of sizes, but without testing
%% exact sizes.
Const = id(42),
@@ -92,14 +98,14 @@ test_size(Config) when is_list(Config) ->
%% Test shared data structures.
do_test_size([ConsCell1|ConsCell1],
- 3*ConsCellSz,
- 2*ConsCellSz),
+ 3*ConsCellSz,
+ 2*ConsCellSz),
do_test_size(fun() -> {ConsCell1,ConsCell2} end,
- FunSz2 + 2*ConsCellSz,
- FunSz2 + ConsCellSz),
+ FunSz2 + 2*ConsCellSz,
+ FunSz2 + ConsCellSz),
do_test_size({SimplestFun,SimplestFun},
- 2*FunSz0+do_test_size({a,b}),
- FunSz0+do_test_size({a,b})),
+ 2*FunSz0+do_test_size({a,b}),
+ FunSz0+do_test_size({a,b})),
M = id(#{ "atom" => first, i => 0}),
do_test_size([M,M#{ "atom" := other },M#{i := 42}],54,32),
@@ -113,6 +119,13 @@ do_test_size(Term, FlatSz, Sz) ->
FlatSz = erts_debug:flat_size(Term),
Sz = erts_debug:size(Term).
+map_size_lower_bound(N) ->
+ %% this est. is a bit lower that actual lower bound
+ %% number of internal nodes
+ T = (N - 1) div 15,
+ %% total words
+ 2 + 17 * T + 2 * N.
+
flat_size_big(Config) when is_list(Config) ->
%% Build a term whose external size only fits in a big num (on 32-bit CPU).
flat_size_big_1(16#11111111111111117777777777777777888889999, 0, 16#FFFFFFF).
@@ -126,23 +139,48 @@ flat_size_big_1(Term, Size0, Limit) when Size0 < Limit ->
flat_size_big_1(_, _, _) -> ok.
df(Config) when is_list(Config) ->
- ?line P0 = pps(),
- ?line PrivDir = ?config(priv_dir, Config),
- ?line ok = file:set_cwd(PrivDir),
- ?line erts_debug:df(?MODULE),
- ?line Beam = filename:join(PrivDir, ?MODULE_STRING++".dis"),
- ?line {ok,Bin} = file:read_file(Beam),
- ?line ok = io:put_chars(binary_to_list(Bin)),
- ?line ok = file:delete(Beam),
- ?line true = (P0 == pps()),
+ P0 = pps(),
+ PrivDir = ?config(priv_dir, Config),
+ ok = file:set_cwd(PrivDir),
+
+ AllLoaded = [M || {M,_} <- code:all_loaded()],
+ {Pid,Ref} = spawn_monitor(fun() -> df_smoke(AllLoaded) end),
+ receive
+ {'DOWN',Ref,process,Pid,Status} ->
+ normal = Status
+ after 20*1000 ->
+ %% Not finished (i.e. a slow computer). Stop now.
+ Pid ! stop,
+ receive
+ {'DOWN',Ref,process,Pid,Status} ->
+ normal = Status,
+ io:format("...")
+ end
+ end,
+ io:nl(),
+ _ = [_ = file:delete(atom_to_list(M) ++ ".dis") ||
+ M <- AllLoaded],
+
+ true = (P0 == pps()),
ok.
+df_smoke([M|Ms]) ->
+ io:format("~p", [M]),
+ erts_debug:df(M),
+ receive
+ stop ->
+ ok
+ after 0 ->
+ df_smoke(Ms)
+ end;
+df_smoke([]) -> ok.
+
pps() ->
{erlang:ports()}.
instructions(Config) when is_list(Config) ->
- ?line Is = erts_debug:instructions(),
- ?line _ = [list_to_atom(I) || I <- Is],
+ Is = erts_debug:instructions(),
+ _ = [list_to_atom(I) || I <- Is],
ok.
id(I) ->