Mercurial > hg > graal-compiler
view src/share/vm/prims/jvm_misc.hpp @ 2149:7e37af9d69ef
7011379: G1: overly long concurrent marking cycles
Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads.
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 19 Jan 2011 09:35:17 -0500 |
parents | f95d63e2154a |
children | 3582bf76420e |
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/* * Copyright (c) 1998, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_PRIMS_JVM_MISC_HPP #define SHARE_VM_PRIMS_JVM_MISC_HPP #include "prims/jni.h" #include "runtime/handles.hpp" // Useful entry points shared by JNI and JVM interface. // We do not allow real JNI or JVM entry point to call each other. jclass find_class_from_class_loader(JNIEnv* env, symbolHandle name, jboolean init, Handle loader, Handle protection_domain, jboolean throwError, TRAPS); void trace_class_resolution(klassOop to_class); /* * Support for Serialization and RMI. Currently used by HotSpot only. */ extern "C" { void JNICALL JVM_SetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj, jlongArray fieldIDs, jcharArray typecodes, jbyteArray data); void JNICALL JVM_GetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj, jlongArray fieldIDs, jcharArray typecodes, jbyteArray data); } /* * Support for -Xcheck:jni */ extern struct JNINativeInterface_* jni_functions_nocheck(); extern struct JNINativeInterface_* jni_functions_check(); /* * Support for swappable jni function table. */ extern struct JNINativeInterface_* jni_functions(); extern void copy_jni_function_table(const struct JNINativeInterface_* new_function_table); // Support for fast JNI accessors extern "C" { typedef jboolean (JNICALL *GetBooleanField_t) (JNIEnv *env, jobject obj, jfieldID fieldID); typedef jbyte (JNICALL *GetByteField_t) (JNIEnv *env, jobject obj, jfieldID fieldID); typedef jchar (JNICALL *GetCharField_t) (JNIEnv *env, jobject obj, jfieldID fieldID); typedef jshort (JNICALL *GetShortField_t) (JNIEnv *env, jobject obj, jfieldID fieldID); typedef jint (JNICALL *GetIntField_t) (JNIEnv *env, jobject obj, jfieldID fieldID); typedef jlong (JNICALL *GetLongField_t) (JNIEnv *env, jobject obj, jfieldID fieldID); typedef jfloat (JNICALL *GetFloatField_t) (JNIEnv *env, jobject obj, jfieldID fieldID); typedef jdouble (JNICALL *GetDoubleField_t) (JNIEnv *env, jobject obj, jfieldID fieldID); } void quicken_jni_functions(); address jni_GetBooleanField_addr(); address jni_GetByteField_addr(); address jni_GetCharField_addr(); address jni_GetShortField_addr(); address jni_GetIntField_addr(); address jni_GetLongField_addr(); address jni_GetFloatField_addr(); address jni_GetDoubleField_addr(); #endif // SHARE_VM_PRIMS_JVM_MISC_HPP