Fri, 10 Jul 2009 11:10:00 -0700
6857194: Add hotspot perf counters to aid class loading performance measurement
Summary: Add new jvmstat counters to measure detailed class loading time
Reviewed-by: acorn, kamg
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2003 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 | #ifndef _JVMTI_CODE_BLOB_EVENTS_H_ |
duke@435 | 26 | #define _JVMTI_CODE_BLOB_EVENTS_H_ |
duke@435 | 27 | |
duke@435 | 28 | // forward declaration |
duke@435 | 29 | class JvmtiEnv; |
duke@435 | 30 | |
duke@435 | 31 | |
duke@435 | 32 | // JVMTI code blob event support |
duke@435 | 33 | // -- used by GenerateEvents to generate CompiledMethodLoad and |
duke@435 | 34 | // DynamicCodeGenerated events |
duke@435 | 35 | // -- also provide utility function build_jvmti_addr_location_map to create |
duke@435 | 36 | // a jvmtiAddrLocationMap list for a nmethod. |
duke@435 | 37 | |
duke@435 | 38 | class JvmtiCodeBlobEvents : public AllStatic { |
duke@435 | 39 | public: |
duke@435 | 40 | |
duke@435 | 41 | // generate a DYNAMIC_CODE_GENERATED_EVENT event for each non-nmethod |
duke@435 | 42 | // code blob in the code cache. |
duke@435 | 43 | static jvmtiError generate_dynamic_code_events(JvmtiEnv* env); |
duke@435 | 44 | |
duke@435 | 45 | // generate a COMPILED_METHOD_LOAD event for each nmethod |
duke@435 | 46 | // code blob in the code cache. |
duke@435 | 47 | static jvmtiError generate_compiled_method_load_events(JvmtiEnv* env); |
duke@435 | 48 | |
duke@435 | 49 | // create a C-heap allocated address location map for an nmethod |
duke@435 | 50 | static void build_jvmti_addr_location_map(nmethod *nm, jvmtiAddrLocationMap** map, |
duke@435 | 51 | jint *map_length); |
duke@435 | 52 | }; |
duke@435 | 53 | |
duke@435 | 54 | #endif |