61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
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/*
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* Copyright (c) 2020, Amazon.com, Inc. 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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*/
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#ifndef SHARE_VM_GC_G1_G1OLDGENALLOCATIONTRACKER_HPP
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#define SHARE_VM_GC_G1_G1OLDGENALLOCATIONTRACKER_HPP
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#include "gc/g1/heapRegion.hpp"
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#include "memory/allocation.hpp"
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// Track allocation details in the old generation.
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class G1OldGenAllocationTracker : public CHeapObj<mtGC> {
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// New bytes allocated in old gen between the end of the last GC and
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// the end of the GC before that.
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size_t _last_cycle_old_bytes;
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// The number of seconds between the end of the last GC and
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// the end of the GC before that.
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double _last_cycle_duration;
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size_t _allocated_bytes_since_last_gc;
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void reset_cycle_after_gc() {
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_last_cycle_old_bytes = _allocated_bytes_since_last_gc;
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_allocated_bytes_since_last_gc = 0;
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}
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public:
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G1OldGenAllocationTracker();
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// Add the given number of bytes to the total number of allocated bytes in the old gen.
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void add_allocated_bytes_since_last_gc(size_t bytes) { _allocated_bytes_since_last_gc += bytes; }
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size_t last_cycle_old_bytes() { return _last_cycle_old_bytes; }
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double last_cycle_duration() { return _last_cycle_duration; }
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// Reset stats after a collection.
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void reset_after_full_gc();
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void reset_after_young_gc(double allocation_duration_s);
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};
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#endif // SHARE_VM_GC_G1_G1OLDGENALLOCATIONTRACKER_HPP
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