From 2947f831d65b5bd807fa6e6f78cd2e96a7c26b35 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Wed, 8 Jan 2014 20:14:18 +0100
Subject: erts: Reduce heap usage for binary_SUITE:deep
---
erts/emulator/test/binary_SUITE.erl | 31 +++++++++++++++++++++----------
1 file changed, 21 insertions(+), 10 deletions(-)
(limited to 'erts')
diff --git a/erts/emulator/test/binary_SUITE.erl b/erts/emulator/test/binary_SUITE.erl
index bce4278337..53cafb3fbc 100644
--- a/erts/emulator/test/binary_SUITE.erl
+++ b/erts/emulator/test/binary_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2014. 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
@@ -1241,16 +1241,27 @@ bsbs_1(A) ->
Bin = binary_to_term_stress(<<131,$M,5:32,A,0,0,0,0,0>>),
BinSize = bit_size(Bin).
+%% lists:foldl(_,_,lists:seq(_,_)) with less heap consumption
+lists_foldl_seq(Fun, Acc0, N, To) when N =< To ->
+ Acc1 = Fun(N, Acc0),
+ lists_foldl_seq(Fun, Acc1, N+1, To);
+
+lists_foldl_seq(_, Acc, _, _) ->
+ Acc.
+
deep(Config) when is_list(Config) ->
- ?line deep_roundtrip(lists:foldl(fun(E, A) ->
- [E,A]
- end, [], lists:seq(1, 1000000))),
- ?line deep_roundtrip(lists:foldl(fun(E, A) ->
- {E,A}
- end, [], lists:seq(1, 1000000))),
- ?line deep_roundtrip(lists:foldl(fun(E, A) ->
- fun() -> {E,A} end
- end, [], lists:seq(1, 1000000))),
+ deep_roundtrip(lists_foldl_seq(fun(E, A) ->
+ [E,A]
+ end, [], 1, 1000000)),
+ erlang:garbage_collect(),
+ deep_roundtrip(lists_foldl_seq(fun(E, A) ->
+ {E,A}
+ end, [], 1, 1000000)),
+ erlang:garbage_collect(),
+ deep_roundtrip(lists_foldl_seq(fun(E, A) ->
+ fun() -> {E,A} end
+ end, [], 1, 1000000)),
+ erlang:garbage_collect(),
ok.
deep_roundtrip(T) ->
--
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