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comparison src/share/vm/memory/genMarkSweep.cpp @ 10188:2f50bc369470

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8013160: NPG: Remove unnecessary mark stack draining after CodeCache::do_unloading Reviewed-by: coleenp, mgerdin
author stefank
date Fri, 26 Apr 2013 10:40:36 +0200
parents a08c80e9e1e5
children f2110083203d
comparison
equal deleted inserted replaced
10187:b294421fa3c5 10188:2f50bc369470
221 ref_processor()->setup_policy(clear_all_softrefs); 221 ref_processor()->setup_policy(clear_all_softrefs);
222 ref_processor()->process_discovered_references( 222 ref_processor()->process_discovered_references(
223 &is_alive, &keep_alive, &follow_stack_closure, NULL); 223 &is_alive, &keep_alive, &follow_stack_closure, NULL);
224 } 224 }
225 225
226 // Follow system dictionary roots and unload classes 226 // This is the point where the entire marking should have completed.
227 assert(_marking_stack.is_empty(), "Marking should have completed");
228
229 // Unload classes and purge the SystemDictionary.
227 bool purged_class = SystemDictionary::do_unloading(&is_alive); 230 bool purged_class = SystemDictionary::do_unloading(&is_alive);
228 231
229 // Follow code cache roots 232 // Unload nmethods.
230 CodeCache::do_unloading(&is_alive, purged_class); 233 CodeCache::do_unloading(&is_alive, purged_class);
231 follow_stack(); // Flush marking stack 234
232 235 // Prune dead klasses from subklass/sibling/implementor lists.
233 // Update subklass/sibling/implementor links of live klasses
234 Klass::clean_weak_klass_links(&is_alive); 236 Klass::clean_weak_klass_links(&is_alive);
235 assert(_marking_stack.is_empty(), "just drained"); 237
236 238 // Delete entries for dead interned strings.
237 // Visit interned string tables and delete unmarked oops
238 StringTable::unlink(&is_alive); 239 StringTable::unlink(&is_alive);
240
239 // Clean up unreferenced symbols in symbol table. 241 // Clean up unreferenced symbols in symbol table.
240 SymbolTable::unlink(); 242 SymbolTable::unlink();
241
242 assert(_marking_stack.is_empty(), "stack should be empty by now");
243 } 243 }
244 244
245 245
246 void GenMarkSweep::mark_sweep_phase2() { 246 void GenMarkSweep::mark_sweep_phase2() {
247 // Now all live objects are marked, compute the new object addresses. 247 // Now all live objects are marked, compute the new object addresses.