Fri, 16 Jul 2010 21:33:21 -0700
6962947: shared TaskQueue statistics
Reviewed-by: tonyp, ysr
duke@435 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 2003, 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 ASPSOldGen : public PSOldGen { |
duke@435 | 26 | friend class VMStructs; |
duke@435 | 27 | size_t _gen_size_limit; // Largest size the generation's reserved size |
duke@435 | 28 | // can grow. |
duke@435 | 29 | public: |
duke@435 | 30 | ASPSOldGen(size_t initial_byte_size, |
duke@435 | 31 | size_t minimum_byte_size, |
duke@435 | 32 | size_t byte_size_limit, |
duke@435 | 33 | const char* gen_name, int level); |
duke@435 | 34 | ASPSOldGen(PSVirtualSpace* vs, |
duke@435 | 35 | size_t initial_byte_size, |
duke@435 | 36 | size_t minimum_byte_size, |
duke@435 | 37 | size_t byte_size_limit, |
duke@435 | 38 | const char* gen_name, int level); |
duke@435 | 39 | size_t gen_size_limit() { return _gen_size_limit; } |
duke@435 | 40 | size_t max_gen_size() { return _reserved.byte_size(); } |
duke@435 | 41 | void set_gen_size_limit(size_t v) { _gen_size_limit = v; } |
duke@435 | 42 | |
duke@435 | 43 | // After a shrink or expand reset the generation |
duke@435 | 44 | void reset_after_change(); |
duke@435 | 45 | |
duke@435 | 46 | // Return number of bytes that the virtual space in the generation is willing |
duke@435 | 47 | // to expand or contract. The results from these methods should feed into the |
duke@435 | 48 | // decisions about adjusting the virtual space. |
duke@435 | 49 | size_t available_for_expansion(); |
duke@435 | 50 | size_t available_for_contraction(); |
duke@435 | 51 | |
duke@435 | 52 | // Accessors |
duke@435 | 53 | void set_reserved(MemRegion v) { _reserved = v; } |
duke@435 | 54 | |
duke@435 | 55 | // Debugging support |
duke@435 | 56 | virtual const char* short_name() const { return "ASPSOldGen"; } |
duke@435 | 57 | }; |