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8072061: Automatically determine optimal sizes for the CDS regions

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See new C++ class MetaspaceClosure.

Reviewed-by: coleenp, jiangli, mseledtsov
This commit is contained in:
Ioi Lam 2017-08-02 18:06:38 -07:00
parent 4b983a51fd
commit f7f193ae71
82 changed files with 2010 additions and 1622 deletions
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30
hotspot/src/share/vm/classfile/systemDictionary.cpp
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@ -49,6 +49,7 @@
#include "logging/log.hpp"
#include "logging/logStream.hpp"
#include "memory/filemap.hpp"
#include "memory/metaspaceClosure.hpp"
#include "memory/oopFactory.hpp"
#include "memory/resourceArea.hpp"
#include "oops/instanceKlass.hpp"
@ -1952,6 +1953,18 @@ void SystemDictionary::oops_do(OopClosure* f) {
ResolvedMethodTable::oops_do(f);
}
// CDS: scan and relocate all classes in the system dictionary.
void SystemDictionary::classes_do(MetaspaceClosure* it) {
ClassLoaderData::the_null_class_loader_data()->dictionary()->classes_do(it);
}
// CDS: scan and relocate all classes referenced by _well_known_klasses[].
void SystemDictionary::well_known_klasses_do(MetaspaceClosure* it) {
for (int id = FIRST_WKID; id < WKID_LIMIT; id++) {
it->push(well_known_klass_addr((WKID)id));
}
}
void SystemDictionary::methods_do(void f(Method*)) {
// Walk methods in loaded classes
ClassLoaderDataGraph::methods_do(f);
@ -2793,18 +2806,23 @@ ProtectionDomainCacheEntry* SystemDictionary::cache_get(Handle protection_domain
return _pd_cache_table->get(protection_domain);
}
void SystemDictionary::reorder_dictionary() {
ClassLoaderData::the_null_class_loader_data()->dictionary()->reorder_dictionary();
void SystemDictionary::reorder_dictionary_for_sharing() {
ClassLoaderData::the_null_class_loader_data()->dictionary()->reorder_dictionary_for_sharing();
}
size_t SystemDictionary::count_bytes_for_buckets() {
return ClassLoaderData::the_null_class_loader_data()->dictionary()->count_bytes_for_buckets();
}
void SystemDictionary::copy_buckets(char** top, char* end) {
size_t SystemDictionary::count_bytes_for_table() {
return ClassLoaderData::the_null_class_loader_data()->dictionary()->count_bytes_for_table();
}
void SystemDictionary::copy_buckets(char* top, char* end) {
ClassLoaderData::the_null_class_loader_data()->dictionary()->copy_buckets(top, end);
}
void SystemDictionary::copy_table(char** top, char* end) {
void SystemDictionary::copy_table(char* top, char* end) {
ClassLoaderData::the_null_class_loader_data()->dictionary()->copy_table(top, end);
}