f6c168053f
Allows string deduplication to be shared among different collectors Reviewed-by: tschatzl, rkennke
83 lines
3.1 KiB
C++
83 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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*/
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#include "precompiled.hpp"
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#include "gc/g1/g1CollectedHeap.inline.hpp"
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#include "gc/g1/g1StringDedupStat.hpp"
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#include "logging/log.hpp"
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G1StringDedupStat::G1StringDedupStat() : StringDedupStat(),
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_deduped_young(0),
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_deduped_young_bytes(0),
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_deduped_old(0),
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_deduped_old_bytes(0),
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_heap(G1CollectedHeap::heap()) {
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}
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void G1StringDedupStat::deduped(oop obj, uintx bytes) {
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StringDedupStat::deduped(obj, bytes);
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if (_heap->is_in_young(obj)) {
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_deduped_young ++;
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_deduped_young_bytes += bytes;
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} else {
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_deduped_old ++;
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_deduped_old_bytes += bytes;
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}
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}
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void G1StringDedupStat::add(const StringDedupStat* const stat) {
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StringDedupStat::add(stat);
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const G1StringDedupStat* const g1_stat = (const G1StringDedupStat* const)stat;
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_deduped_young += g1_stat->_deduped_young;
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_deduped_young_bytes += g1_stat->_deduped_young_bytes;
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_deduped_old += g1_stat->_deduped_old;
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_deduped_old_bytes += g1_stat->_deduped_old_bytes;
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}
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void G1StringDedupStat::print_statistics(bool total) const {
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StringDedupStat::print_statistics(total);
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double deduped_young_percent = percent_of(_deduped_young, _deduped);
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double deduped_young_bytes_percent = percent_of(_deduped_young_bytes, _deduped_bytes);
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double deduped_old_percent = percent_of(_deduped_old, _deduped);
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double deduped_old_bytes_percent = percent_of(_deduped_old_bytes, _deduped_bytes);
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log_debug(gc, stringdedup)(" Young: " STRDEDUP_OBJECTS_FORMAT "(" STRDEDUP_PERCENT_FORMAT ") " STRDEDUP_BYTES_FORMAT "(" STRDEDUP_PERCENT_FORMAT ")",
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_deduped_young, deduped_young_percent, STRDEDUP_BYTES_PARAM(_deduped_young_bytes), deduped_young_bytes_percent);
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log_debug(gc, stringdedup)(" Old: " STRDEDUP_OBJECTS_FORMAT "(" STRDEDUP_PERCENT_FORMAT ") " STRDEDUP_BYTES_FORMAT "(" STRDEDUP_PERCENT_FORMAT ")",
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_deduped_old, deduped_old_percent, STRDEDUP_BYTES_PARAM(_deduped_old_bytes), deduped_old_bytes_percent);
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}
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void G1StringDedupStat::reset() {
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StringDedupStat::reset();
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_deduped_young = 0;
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_deduped_young_bytes = 0;
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_deduped_old = 0;
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_deduped_old_bytes = 0;
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}
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