Mercurial > hg > truffle
diff src/share/vm/memory/metaspaceCounters.hpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author | coleenp |
---|---|
date | Sat, 01 Sep 2012 13:25:18 -0400 |
parents | |
children | 79f492f184d0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/memory/metaspaceCounters.hpp Sat Sep 01 13:25:18 2012 -0400 @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2012 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. + * + */ + +#ifndef SHARE_VM_MEMORY_METASPACECOUNTERS_HPP +#define SHARE_VM_MEMORY_METASPACECOUNTERS_HPP + +#include "runtime/perfData.hpp" + +class MetaspaceCounters: public CHeapObj<mtClass> { + friend class VMStructs; + PerfVariable* _current_size; + PerfVariable* _capacity; + PerfVariable* _used; + PerfVariable* _max_capacity; + char* _name_space; + static MetaspaceCounters* _metaspace_counters; + void initialize(size_t min_capacity, + size_t max_capacity, + size_t curr_capacity, + size_t used); + public: + MetaspaceCounters(); + ~MetaspaceCounters(); + + void update_capacity(); + void update_used(); + void update_max_capacity(); + + void update_all(); + + static void initialize_performance_counters(); + static void update_performance_counters(); + +}; +#endif // SHARE_VM_MEMORY_METASPACECOUNTERS_HPP