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8259809: Remove PerfEvent class loading locking counters

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Reviewed-by: redestad, iklam
This commit is contained in:
Coleen Phillimore 2021-01-26 11:50:10 +00:00
parent b4ace3e979
commit 81a66dfa81
8 changed files with 1 additions and 163 deletions
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25
src/hotspot/share/classfile/classLoader.cpp
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@ -132,11 +132,6 @@ PerfCounter* ClassLoader::_perf_define_appclass_time = NULL;
PerfCounter* ClassLoader::_perf_define_appclass_selftime = NULL;
PerfCounter* ClassLoader::_perf_app_classfile_bytes_read = NULL;
PerfCounter* ClassLoader::_perf_sys_classfile_bytes_read = NULL;
PerfCounter* ClassLoader::_sync_systemLoaderLockContentionRate = NULL;
PerfCounter* ClassLoader::_sync_nonSystemLoaderLockContentionRate = NULL;
PerfCounter* ClassLoader::_sync_JVMFindLoadedClassLockFreeCounter = NULL;
PerfCounter* ClassLoader::_sync_JVMDefineClassLockFreeCounter = NULL;
PerfCounter* ClassLoader::_sync_JNIDefineClassLockFreeCounter = NULL;
PerfCounter* ClassLoader::_unsafe_defineClassCallCounter = NULL;
GrowableArray<ModuleClassPathList*>* ClassLoader::_patch_mod_entries = NULL;
@ -1462,25 +1457,7 @@ void ClassLoader::initialize() {
NEWPERFBYTECOUNTER(_perf_app_classfile_bytes_read, SUN_CLS, "appClassBytes");
NEWPERFBYTECOUNTER(_perf_sys_classfile_bytes_read, SUN_CLS, "sysClassBytes");
// The following performance counters are added for measuring the impact
// 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.
NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS,
"systemLoaderLockContentionRate");
NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS,
"nonSystemLoaderLockContentionRate");
NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS,
"jvmFindLoadedClassNoLockCalls");
NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS,
"jvmDefineClassNoLockCalls");
NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS,
"jniDefineClassNoLockCalls");
NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS,
"unsafeDefineClassCalls");
NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS, "unsafeDefineClassCalls");
}
// lookup java library entry points