234 }
235
236 // Update heap occupancy information which is used as
237 // input to soft ref clearing policy at the next gc.
238 Universe::update_heap_info_at_gc();
239
240 survivors_empty = young_gen->from_space()->is_empty() &&
241 young_gen->to_space()->is_empty();
242 young_gen_empty = eden_empty && survivors_empty;
243
244 PSCardTable* card_table = heap->card_table();
245 MemRegion old_mr = heap->old_gen()->reserved();
246 if (young_gen_empty) {
247 card_table->clear(MemRegion(old_mr.start(), old_mr.end()));
248 } else {
249 card_table->invalidate(MemRegion(old_mr.start(), old_mr.end()));
250 }
251
252 // Delete metaspaces for unloaded class loaders and clean up loader_data graph
253 ClassLoaderDataGraph::purge();
254 MetaspaceUtils::verify_metrics();
255
256 BiasedLocking::restore_marks();
257 heap->prune_scavengable_nmethods();
258
259 #if COMPILER2_OR_JVMCI
260 DerivedPointerTable::update_pointers();
261 #endif
262
263 assert(!ref_processor()->discovery_enabled(), "Should have been disabled earlier");
264
265 // Update time of last GC
266 reset_millis_since_last_gc();
267
268 // Let the size policy know we're done
269 size_policy->major_collection_end(old_gen->used_in_bytes(), gc_cause);
270
271 if (UseAdaptiveSizePolicy) {
272
273 log_debug(gc, ergo)("AdaptiveSizeStart: collection: %d ", heap->total_collections());
274 log_trace(gc, ergo)("old_gen_capacity: " SIZE_FORMAT " young_gen_capacity: " SIZE_FORMAT,
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234 }
235
236 // Update heap occupancy information which is used as
237 // input to soft ref clearing policy at the next gc.
238 Universe::update_heap_info_at_gc();
239
240 survivors_empty = young_gen->from_space()->is_empty() &&
241 young_gen->to_space()->is_empty();
242 young_gen_empty = eden_empty && survivors_empty;
243
244 PSCardTable* card_table = heap->card_table();
245 MemRegion old_mr = heap->old_gen()->reserved();
246 if (young_gen_empty) {
247 card_table->clear(MemRegion(old_mr.start(), old_mr.end()));
248 } else {
249 card_table->invalidate(MemRegion(old_mr.start(), old_mr.end()));
250 }
251
252 // Delete metaspaces for unloaded class loaders and clean up loader_data graph
253 ClassLoaderDataGraph::purge();
254 DEBUG_ONLY(MetaspaceUtils::verify(false);)
255
256 BiasedLocking::restore_marks();
257 heap->prune_scavengable_nmethods();
258
259 #if COMPILER2_OR_JVMCI
260 DerivedPointerTable::update_pointers();
261 #endif
262
263 assert(!ref_processor()->discovery_enabled(), "Should have been disabled earlier");
264
265 // Update time of last GC
266 reset_millis_since_last_gc();
267
268 // Let the size policy know we're done
269 size_policy->major_collection_end(old_gen->used_in_bytes(), gc_cause);
270
271 if (UseAdaptiveSizePolicy) {
272
273 log_debug(gc, ergo)("AdaptiveSizeStart: collection: %d ", heap->total_collections());
274 log_trace(gc, ergo)("old_gen_capacity: " SIZE_FORMAT " young_gen_capacity: " SIZE_FORMAT,
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