87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "precompiled.hpp"
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#include "memory/metaspace.hpp"
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#include "memory/metaspace/virtualSpaceList.hpp"
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#include "runtime/mutexLocker.hpp"
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#include "runtime/os.hpp"
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#include "unittest.hpp"
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using namespace metaspace;
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TEST_VM(MetaspaceUtils, reserved) {
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size_t reserved = MetaspaceUtils::reserved_bytes();
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EXPECT_GT(reserved, 0UL);
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size_t reserved_metadata = MetaspaceUtils::reserved_bytes(Metaspace::NonClassType);
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EXPECT_GT(reserved_metadata, 0UL);
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EXPECT_LE(reserved_metadata, reserved);
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}
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TEST_VM(MetaspaceUtils, reserved_compressed_class_pointers) {
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if (!UseCompressedClassPointers) {
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return;
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}
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size_t reserved = MetaspaceUtils::reserved_bytes();
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EXPECT_GT(reserved, 0UL);
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size_t reserved_class = MetaspaceUtils::reserved_bytes(Metaspace::ClassType);
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EXPECT_GT(reserved_class, 0UL);
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EXPECT_LE(reserved_class, reserved);
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}
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TEST_VM(MetaspaceUtils, committed) {
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size_t committed = MetaspaceUtils::committed_bytes();
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EXPECT_GT(committed, 0UL);
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size_t reserved = MetaspaceUtils::reserved_bytes();
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EXPECT_LE(committed, reserved);
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size_t committed_metadata = MetaspaceUtils::committed_bytes(Metaspace::NonClassType);
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EXPECT_GT(committed_metadata, 0UL);
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EXPECT_LE(committed_metadata, committed);
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}
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TEST_VM(MetaspaceUtils, committed_compressed_class_pointers) {
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if (!UseCompressedClassPointers) {
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return;
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}
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size_t committed = MetaspaceUtils::committed_bytes();
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EXPECT_GT(committed, 0UL);
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size_t committed_class = MetaspaceUtils::committed_bytes(Metaspace::ClassType);
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EXPECT_GT(committed_class, 0UL);
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EXPECT_LE(committed_class, committed);
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}
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TEST_VM(MetaspaceUtils, virtual_space_list_large_chunk) {
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VirtualSpaceList* vs_list = new VirtualSpaceList(os::vm_allocation_granularity());
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MutexLockerEx cl(MetaspaceExpand_lock, Mutex::_no_safepoint_check_flag);
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// A size larger than VirtualSpaceSize (256k) and add one page to make it _not_ be
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// vm_allocation_granularity aligned on Windows.
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size_t large_size = (size_t)(2*256*K + (os::vm_page_size() / BytesPerWord));
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large_size += (os::vm_page_size() / BytesPerWord);
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vs_list->get_new_chunk(large_size, 0);
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}
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