Thu, 19 Mar 2009 09:13:24 -0700
Merge
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 1997-2004 Sun Microsystems, Inc. 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 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | // BytecodeCounter counts the number of bytecodes executed |
duke@435 | 26 | |
duke@435 | 27 | class BytecodeCounter: AllStatic { |
duke@435 | 28 | private: |
duke@435 | 29 | NOT_PRODUCT(static int _counter_value;) |
duke@435 | 30 | NOT_PRODUCT(static jlong _reset_time;) |
duke@435 | 31 | |
duke@435 | 32 | friend class TemplateInterpreterGenerator; |
duke@435 | 33 | friend class BytecodeInterpreter; |
duke@435 | 34 | |
duke@435 | 35 | public: |
duke@435 | 36 | // Initialization |
duke@435 | 37 | static void reset() PRODUCT_RETURN; |
duke@435 | 38 | |
duke@435 | 39 | // Counter info (all info since last reset) |
duke@435 | 40 | static int counter_value() PRODUCT_RETURN0 NOT_PRODUCT({ return _counter_value; }); |
duke@435 | 41 | static double elapsed_time() PRODUCT_RETURN0; // in seconds |
duke@435 | 42 | static double frequency() PRODUCT_RETURN0; // bytecodes/seconds |
duke@435 | 43 | |
duke@435 | 44 | // Counter printing |
duke@435 | 45 | static void print() PRODUCT_RETURN; |
duke@435 | 46 | }; |
duke@435 | 47 | |
duke@435 | 48 | |
duke@435 | 49 | // BytecodeHistogram collects number of executions of bytecodes |
duke@435 | 50 | |
duke@435 | 51 | class BytecodeHistogram: AllStatic { |
duke@435 | 52 | private: |
duke@435 | 53 | NOT_PRODUCT(static int _counters[Bytecodes::number_of_codes];) // a counter for each bytecode |
duke@435 | 54 | |
duke@435 | 55 | friend class TemplateInterpreterGenerator; |
duke@435 | 56 | friend class InterpreterGenerator; |
duke@435 | 57 | friend class BytecodeInterpreter; |
duke@435 | 58 | |
duke@435 | 59 | public: |
duke@435 | 60 | // Initialization |
duke@435 | 61 | static void reset() PRODUCT_RETURN; // reset counters |
duke@435 | 62 | |
duke@435 | 63 | // Profile printing |
duke@435 | 64 | static void print(float cutoff = 0.01F) PRODUCT_RETURN; // cutoff in percent |
duke@435 | 65 | }; |
duke@435 | 66 | |
duke@435 | 67 | |
duke@435 | 68 | // BytecodePairHistogram collects number of executions of bytecode pairs. |
duke@435 | 69 | // A bytecode pair is any sequence of two consequtive bytecodes. |
duke@435 | 70 | |
duke@435 | 71 | class BytecodePairHistogram: AllStatic { |
duke@435 | 72 | public: // for SparcWorks |
duke@435 | 73 | enum Constants { |
duke@435 | 74 | log2_number_of_codes = 8, // use a power of 2 for faster addressing |
duke@435 | 75 | number_of_codes = 1 << log2_number_of_codes, // must be no less than Bytecodes::number_of_codes |
duke@435 | 76 | number_of_pairs = number_of_codes * number_of_codes |
duke@435 | 77 | }; |
duke@435 | 78 | |
duke@435 | 79 | private: |
duke@435 | 80 | NOT_PRODUCT(static int _index;) // new bytecode is shifted in - used to index into _counters |
duke@435 | 81 | NOT_PRODUCT(static int _counters[number_of_pairs];) // a counter for each pair |
duke@435 | 82 | |
duke@435 | 83 | friend class TemplateInterpreterGenerator; |
duke@435 | 84 | friend class InterpreterGenerator; |
duke@435 | 85 | |
duke@435 | 86 | public: |
duke@435 | 87 | // Initialization |
duke@435 | 88 | static void reset() PRODUCT_RETURN; // reset counters |
duke@435 | 89 | |
duke@435 | 90 | // Profile printing |
duke@435 | 91 | static void print(float cutoff = 0.01F) PRODUCT_RETURN; // cutoff in percent |
duke@435 | 92 | }; |