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体验新版 GitCode,发现更多精彩内容 >>
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ce04ab42
编写于
9月 16, 2013
作者:
T
tschatzl
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2 changed file
with
48 addition
and
1 deletion
+48
-1
src/share/vm/memory/universe.cpp
src/share/vm/memory/universe.cpp
+1
-1
test/gc/arguments/TestAlignmentToUseLargePages.java
test/gc/arguments/TestAlignmentToUseLargePages.java
+47
-0
未找到文件。
src/share/vm/memory/universe.cpp
浏览文件 @
ce04ab42
...
@@ -881,7 +881,7 @@ ReservedSpace Universe::reserve_heap(size_t heap_size, size_t alignment) {
...
@@ -881,7 +881,7 @@ ReservedSpace Universe::reserve_heap(size_t heap_size, size_t alignment) {
bool
use_large_pages
=
UseLargePages
&&
is_size_aligned
(
alignment
,
os
::
large_page_size
());
bool
use_large_pages
=
UseLargePages
&&
is_size_aligned
(
alignment
,
os
::
large_page_size
());
assert
(
!
UseLargePages
assert
(
!
UseLargePages
||
UseParallel
Old
GC
||
UseParallelGC
||
use_large_pages
,
"Wrong alignment to use large pages"
);
||
use_large_pages
,
"Wrong alignment to use large pages"
);
char
*
addr
=
Universe
::
preferred_heap_base
(
total_reserved
,
alignment
,
Universe
::
UnscaledNarrowOop
);
char
*
addr
=
Universe
::
preferred_heap_base
(
total_reserved
,
alignment
,
Universe
::
UnscaledNarrowOop
);
...
...
test/gc/arguments/TestAlignmentToUseLargePages.java
0 → 100644
浏览文件 @
ce04ab42
/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test TestAlignmentToUseLargePages
* @summary All parallel GC variants may use large pages without the requirement that the
* heap alignment is large page aligned. Other collectors also need to start up with odd sized heaps.
* @bug 8024396
* @key gc
* @key regression
* @run main/othervm -Xms7M -Xmx9M -XX:+UseParallelGC -XX:-UseParallelOldGC -XX:+UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseParallelGC -XX:-UseParallelOldGC -XX:-UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseParallelGC -XX:+UseParallelOldGC -XX:+UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseParallelGC -XX:+UseParallelOldGC -XX:-UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseSerialGC -XX:+UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseSerialGC -XX:-UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseConcMarkSweepGC -XX:+UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseConcMarkSweepGC -XX:-UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseG1GC -XX:+UseLargePages TestAlignmentToUseLargePages
* @run main/othervm -Xms7M -Xmx9M -XX:+UseG1GC -XX:-UseLargePages TestAlignmentToUseLargePages
*/
public
class
TestAlignmentToUseLargePages
{
public
static
void
main
(
String
args
[])
throws
Exception
{
// nothing to do
}
}
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