1 /*
2 * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
47 #include "utilities/debug.hpp"
48 #include "utilities/formatBuffer.hpp"
49 #include "utilities/globalDefinitions.hpp"
50 #include "utilities/vmError.hpp"
51
52
53 using namespace metaspace;
54
55 MetaWord* last_allocated = 0;
56
57 size_t Metaspace::_compressed_class_space_size;
58 const MetaspaceTracer* Metaspace::_tracer = NULL;
59
60 DEBUG_ONLY(bool Metaspace::_frozen = false;)
61
62 static const char* space_type_name(Metaspace::MetaspaceType t) {
63 const char* s = NULL;
64 switch (t) {
65 case Metaspace::StandardMetaspaceType: s = "Standard"; break;
66 case Metaspace::BootMetaspaceType: s = "Boot"; break;
67 case Metaspace::UnsafeAnonymousMetaspaceType: s = "UnsafeAnonymous"; break;
68 case Metaspace::ReflectionMetaspaceType: s = "Reflection"; break;
69 default: ShouldNotReachHere();
70 }
71 return s;
72 }
73
74 volatile size_t MetaspaceGC::_capacity_until_GC = 0;
75 uint MetaspaceGC::_shrink_factor = 0;
76
77 // BlockFreelist methods
78
79 // VirtualSpaceNode methods
80
81 // MetaspaceGC methods
82
83 // VM_CollectForMetadataAllocation is the vm operation used to GC.
84 // Within the VM operation after the GC the attempt to allocate the metadata
85 // should succeed. If the GC did not free enough space for the metaspace
86 // allocation, the HWM is increased so that another virtualspace will be
87 // allocated for the metadata. With perm gen the increase in the perm
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1 /*
2 * Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
47 #include "utilities/debug.hpp"
48 #include "utilities/formatBuffer.hpp"
49 #include "utilities/globalDefinitions.hpp"
50 #include "utilities/vmError.hpp"
51
52
53 using namespace metaspace;
54
55 MetaWord* last_allocated = 0;
56
57 size_t Metaspace::_compressed_class_space_size;
58 const MetaspaceTracer* Metaspace::_tracer = NULL;
59
60 DEBUG_ONLY(bool Metaspace::_frozen = false;)
61
62 static const char* space_type_name(Metaspace::MetaspaceType t) {
63 const char* s = NULL;
64 switch (t) {
65 case Metaspace::StandardMetaspaceType: s = "Standard"; break;
66 case Metaspace::BootMetaspaceType: s = "Boot"; break;
67 case Metaspace::ClassMirrorHolderMetaspaceType: s = "ClassMirrorHolder"; break;
68 case Metaspace::ReflectionMetaspaceType: s = "Reflection"; break;
69 default: ShouldNotReachHere();
70 }
71 return s;
72 }
73
74 volatile size_t MetaspaceGC::_capacity_until_GC = 0;
75 uint MetaspaceGC::_shrink_factor = 0;
76
77 // BlockFreelist methods
78
79 // VirtualSpaceNode methods
80
81 // MetaspaceGC methods
82
83 // VM_CollectForMetadataAllocation is the vm operation used to GC.
84 // Within the VM operation after the GC the attempt to allocate the metadata
85 // should succeed. If the GC did not free enough space for the metaspace
86 // allocation, the HWM is increased so that another virtualspace will be
87 // allocated for the metadata. With perm gen the increase in the perm
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