Fri, 16 Jul 2010 21:33:21 -0700
6962947: shared TaskQueue statistics
Reviewed-by: tonyp, ysr
duke@435 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 2001, 2005, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | class AdaptivePaddedAverage; |
duke@435 | 26 | |
duke@435 | 27 | class PSPermGen : public PSOldGen { |
duke@435 | 28 | friend class VMStructs; |
duke@435 | 29 | protected: |
duke@435 | 30 | AdaptivePaddedAverage* _avg_size; // Used for sizing |
duke@435 | 31 | size_t _last_used; // Amount used at last GC, used for sizing |
duke@435 | 32 | |
duke@435 | 33 | public: |
duke@435 | 34 | // Initialize the generation. |
duke@435 | 35 | PSPermGen(ReservedSpace rs, size_t alignment, size_t initial_byte_size, |
duke@435 | 36 | size_t minimum_byte_size, size_t maximum_byte_size, |
duke@435 | 37 | const char* gen_name, int level); |
duke@435 | 38 | |
duke@435 | 39 | // Permanent Gen special allocation. Uses the OldGen allocation |
duke@435 | 40 | // routines, which should not be directly called on this generation. |
duke@435 | 41 | HeapWord* allocate_permanent(size_t word_size); |
duke@435 | 42 | |
duke@435 | 43 | // Size calculation. |
duke@435 | 44 | void compute_new_size(size_t used_before_collection); |
duke@435 | 45 | |
duke@435 | 46 | // MarkSweep code |
duke@435 | 47 | virtual void precompact(); |
duke@435 | 48 | |
duke@435 | 49 | // Parallel old |
duke@435 | 50 | virtual void move_and_update(ParCompactionManager* cm); |
duke@435 | 51 | |
duke@435 | 52 | virtual const char* name() const { return "PSPermGen"; } |
duke@435 | 53 | }; |