Mercurial > hg > truffle
view src/share/vm/gc_implementation/parallelScavenge/generationSizer.cpp @ 18454:5af19da6fae5
DelayedFrameMapBuilder: remove TrackedVirtualStackSlot.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Mon, 17 Nov 2014 19:34:08 +0100 |
parents | ee527493b36d |
children |
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/* * Copyright (c) 2001, 2013, 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. * */ #include "precompiled.hpp" #include "gc_implementation/parallelScavenge/generationSizer.hpp" #include "memory/collectorPolicy.hpp" void GenerationSizer::trace_gen_sizes(const char* const str) { if (TracePageSizes) { tty->print_cr("%s: " SIZE_FORMAT "," SIZE_FORMAT " " SIZE_FORMAT "," SIZE_FORMAT " " SIZE_FORMAT, str, _min_gen1_size / K, _max_gen1_size / K, _min_gen0_size / K, _max_gen0_size / K, _max_heap_byte_size / K); } } void GenerationSizer::initialize_alignments() { _space_alignment = _gen_alignment = default_gen_alignment(); _heap_alignment = compute_heap_alignment(); } void GenerationSizer::initialize_flags() { // Do basic sizing work TwoGenerationCollectorPolicy::initialize_flags(); assert(UseSerialGC || !FLAG_IS_DEFAULT(ParallelGCThreads) || (ParallelGCThreads > 0), "ParallelGCThreads should be set before flag initialization"); // The survivor ratio's are calculated "raw", unlike the // default gc, which adds 2 to the ratio value. We need to // make sure the values are valid before using them. if (MinSurvivorRatio < 3) { FLAG_SET_ERGO(uintx, MinSurvivorRatio, 3); } if (InitialSurvivorRatio < 3) { FLAG_SET_ERGO(uintx, InitialSurvivorRatio, 3); } } void GenerationSizer::initialize_size_info() { trace_gen_sizes("ps heap raw"); const size_t page_sz = os::page_size_for_region(_min_heap_byte_size, _max_heap_byte_size, 8); // Can a page size be something else than a power of two? assert(is_power_of_2((intptr_t)page_sz), "must be a power of 2"); size_t new_alignment = round_to(page_sz, _gen_alignment); if (new_alignment != _gen_alignment) { _gen_alignment = new_alignment; _space_alignment = new_alignment; // Redo everything from the start initialize_flags(); } TwoGenerationCollectorPolicy::initialize_size_info(); trace_gen_sizes("ps heap rnd"); }