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comparison src/share/vm/gc_implementation/g1/heapRegion.cpp @ 6646:c38f13903fdf

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Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ just before the NPG (no perm gen) changeset
author Doug Simon <doug.simon@oracle.com>
date Mon, 29 Oct 2012 21:10:04 +0100
parents 957c266d8bc5 7383557659bd
children e522a00b91aa
comparison
equal deleted inserted replaced
6590:dc5eec61daba 6646:c38f13903fdf
382 (CardTableModRefBS*)G1CollectedHeap::heap()->barrier_set(); 382 (CardTableModRefBS*)G1CollectedHeap::heap()->barrier_set();
383 ct_bs->clear(MemRegion(bottom(), end())); 383 ct_bs->clear(MemRegion(bottom(), end()));
384 } 384 }
385 385
386 void HeapRegion::calc_gc_efficiency() { 386 void HeapRegion::calc_gc_efficiency() {
387 // GC efficiency is the ratio of how much space would be
388 // reclaimed over how long we predict it would take to reclaim it.
387 G1CollectedHeap* g1h = G1CollectedHeap::heap(); 389 G1CollectedHeap* g1h = G1CollectedHeap::heap();
388 G1CollectorPolicy* g1p = g1h->g1_policy(); 390 G1CollectorPolicy* g1p = g1h->g1_policy();
389 _gc_efficiency = (double) reclaimable_bytes() / 391
390 g1p->predict_region_elapsed_time_ms(this, false); 392 // Retrieve a prediction of the elapsed time for this region for
393 // a mixed gc because the region will only be evacuated during a
394 // mixed gc.
395 double region_elapsed_time_ms =
396 g1p->predict_region_elapsed_time_ms(this, false /* for_young_gc */);
397 _gc_efficiency = (double) reclaimable_bytes() / region_elapsed_time_ms;
391 } 398 }
392 399
393 void HeapRegion::set_startsHumongous(HeapWord* new_top, HeapWord* new_end) { 400 void HeapRegion::set_startsHumongous(HeapWord* new_top, HeapWord* new_end) {
394 assert(!isHumongous(), "sanity / pre-condition"); 401 assert(!isHumongous(), "sanity / pre-condition");
395 assert(end() == _orig_end, 402 assert(end() == _orig_end,