Mercurial > hg > truffle
view src/share/vm/interpreter/bytecodeHistogram.hpp @ 1578:ca3dceda776c
6930994: Code cache is full warning should be visible in product
Reviewed-by: kvn, twisti, ysr
author | never |
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date | Wed, 02 Jun 2010 20:15:33 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 1997-2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ // BytecodeCounter counts the number of bytecodes executed class BytecodeCounter: AllStatic { private: NOT_PRODUCT(static int _counter_value;) NOT_PRODUCT(static jlong _reset_time;) friend class TemplateInterpreterGenerator; friend class BytecodeInterpreter; public: // Initialization static void reset() PRODUCT_RETURN; // Counter info (all info since last reset) static int counter_value() PRODUCT_RETURN0 NOT_PRODUCT({ return _counter_value; }); static double elapsed_time() PRODUCT_RETURN0; // in seconds static double frequency() PRODUCT_RETURN0; // bytecodes/seconds // Counter printing static void print() PRODUCT_RETURN; }; // BytecodeHistogram collects number of executions of bytecodes class BytecodeHistogram: AllStatic { private: NOT_PRODUCT(static int _counters[Bytecodes::number_of_codes];) // a counter for each bytecode friend class TemplateInterpreterGenerator; friend class InterpreterGenerator; friend class BytecodeInterpreter; public: // Initialization static void reset() PRODUCT_RETURN; // reset counters // Profile printing static void print(float cutoff = 0.01F) PRODUCT_RETURN; // cutoff in percent }; // BytecodePairHistogram collects number of executions of bytecode pairs. // A bytecode pair is any sequence of two consequtive bytecodes. class BytecodePairHistogram: AllStatic { public: // for SparcWorks enum Constants { log2_number_of_codes = 8, // use a power of 2 for faster addressing number_of_codes = 1 << log2_number_of_codes, // must be no less than Bytecodes::number_of_codes number_of_pairs = number_of_codes * number_of_codes }; private: NOT_PRODUCT(static int _index;) // new bytecode is shifted in - used to index into _counters NOT_PRODUCT(static int _counters[number_of_pairs];) // a counter for each pair friend class TemplateInterpreterGenerator; friend class InterpreterGenerator; public: // Initialization static void reset() PRODUCT_RETURN; // reset counters // Profile printing static void print(float cutoff = 0.01F) PRODUCT_RETURN; // cutoff in percent };