archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-27 23:04:50 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8184289: Obsolete -XX:+UnsyncloadClass and -XX:+MustCallLoadClassInternal options

Browse source 
Add comments, fix a small issue with the boot loader, and add an assert.

Reviewed-by: coleenp, alanb, acorn, dholmes
This commit is contained in:
Harold Seigel 2018-02-21 11:18:52 -05:00
parent 6be7841937
commit 7d1735efbb
12 changed files with 37 additions and 143 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/hotspot/share/classfile/classLoader.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2018, 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
@ -137,7 +137,6 @@ PerfCounter* ClassLoader::_sync_JVMFindLoadedClassLockFreeCounter = NULL;
PerfCounter* ClassLoader::_sync_JVMDefineClassLockFreeCounter = NULL;
PerfCounter* ClassLoader::_sync_JNIDefineClassLockFreeCounter = NULL;
PerfCounter* ClassLoader::_unsafe_defineClassCallCounter = NULL;
PerfCounter* ClassLoader::_isUnsyncloadClass = NULL;
PerfCounter* ClassLoader::_load_instance_class_failCounter = NULL;
GrowableArray<ModuleClassPathList*>* ClassLoader::_patch_mod_entries = NULL;
@ -1642,9 +1641,6 @@ void ClassLoader::initialize() {
// of the bug fix of 6365597. They are mainly focused on finding out
// the behavior of system & user-defined classloader lock, whether
// ClassLoader.loadClass/findClass is being called synchronized or not.
// Also two additional counters are created to see whether 'UnsyncloadClass'
// flag is being set or not and how many times load_instance_class call
// fails with linkageError etc.
NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS,
"systemLoaderLockContentionRate");
NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS,
@ -1660,14 +1656,8 @@ void ClassLoader::initialize() {
NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS,
"unsafeDefineClassCalls");
NEWPERFEVENTCOUNTER(_isUnsyncloadClass, SUN_CLS, "isUnsyncloadClassSet");
NEWPERFEVENTCOUNTER(_load_instance_class_failCounter, SUN_CLS,
"loadInstanceClassFailRate");
// increment the isUnsyncloadClass counter if UnsyncloadClass is set.
if (UnsyncloadClass) {
_isUnsyncloadClass->inc();
}
}
// lookup zip library entry points