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

8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders

Browse source 
Reviewed-by: johnc, coleenp
This commit is contained in:
Jon Masamitsu 2012-12-03 15:09:39 -08:00
parent 52a0bed8f5
commit e8b3b89264
8 changed files with 419 additions and 226 deletions
Download patch file Download diff file Expand all files Collapse all files

19
hotspot/src/share/vm/classfile/classLoaderData.cpp
View file

@ -330,10 +330,19 @@ Metaspace* ClassLoaderData::metaspace_non_null() {
}
if (this == the_null_class_loader_data()) {
assert (class_loader() == NULL, "Must be");
size_t word_size = Metaspace::first_chunk_word_size();
set_metaspace(new Metaspace(_metaspace_lock, word_size));
set_metaspace(new Metaspace(_metaspace_lock, Metaspace::BootMetaspaceType));
} else if (is_anonymous()) {
if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
tty->print_cr("is_anonymous: %s", class_loader()->klass()->internal_name());
}
set_metaspace(new Metaspace(_metaspace_lock, Metaspace::AnonymousMetaspaceType));
} else if (class_loader()->is_a(SystemDictionary::reflect_DelegatingClassLoader_klass())) {
if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
tty->print_cr("is_reflection: %s", class_loader()->klass()->internal_name());
}
set_metaspace(new Metaspace(_metaspace_lock, Metaspace::ReflectionMetaspaceType));
} else {
set_metaspace(new Metaspace(_metaspace_lock)); // default size for now.
set_metaspace(new Metaspace(_metaspace_lock, Metaspace::StandardMetaspaceType));
}
}
return _metaspace;
@ -672,8 +681,8 @@ void ClassLoaderData::initialize_shared_metaspaces() {
"only supported for null loader data for now");
assert (!_shared_metaspaces_initialized, "only initialize once");
MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
_ro_metaspace = new Metaspace(_metaspace_lock, SharedReadOnlySize/wordSize);
_rw_metaspace = new Metaspace(_metaspace_lock, SharedReadWriteSize/wordSize);
_ro_metaspace = new Metaspace(_metaspace_lock, Metaspace::ROMetaspaceType);
_rw_metaspace = new Metaspace(_metaspace_lock, Metaspace::ReadWriteMetaspaceType);
_shared_metaspaces_initialized = true;
}