Mercurial > hg > truffle
diff src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp @ 3980:8229bd737950
7075646: G1: fix inconsistencies in the monitoring data
Summary: Fixed a few inconsistencies in the monitoring data, in particular when reported from jstat.
Reviewed-by: jmasa, brutisso, johnc
author | tonyp |
---|---|
date | Fri, 23 Sep 2011 16:07:49 -0400 |
parents | 4dfb2df418f2 |
children | 273b46400613 |
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--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Thu Sep 22 10:57:37 2011 -0700 +++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Fri Sep 23 16:07:49 2011 -0400 @@ -816,6 +816,11 @@ result = humongous_obj_allocate_initialize_regions(first, num_regions, word_size); assert(result != NULL, "it should always return a valid result"); + + // A successful humongous object allocation changes the used space + // information of the old generation so we need to recalculate the + // sizes and update the jstat counters here. + g1mm()->update_sizes(); } verify_region_sets_optional(); @@ -1422,7 +1427,7 @@ if (PrintHeapAtGC) { Universe::print_heap_after_gc(); } - g1mm()->update_counters(); + g1mm()->update_sizes(); post_full_gc_dump(); return true; @@ -1790,6 +1795,7 @@ _evac_failure_scan_stack(NULL) , _mark_in_progress(false), _cg1r(NULL), _summary_bytes_used(0), + _g1mm(NULL), _refine_cte_cl(NULL), _full_collection(false), _free_list("Master Free List"), @@ -2069,7 +2075,7 @@ // Do create of the monitoring and management support so that // values in the heap have been properly initialized. - _g1mm = new G1MonitoringSupport(this, &_g1_storage); + _g1mm = new G1MonitoringSupport(this); return JNI_OK; } @@ -3702,7 +3708,7 @@ if (PrintHeapAtGC) { Universe::print_heap_after_gc(); } - g1mm()->update_counters(); + g1mm()->update_sizes(); if (G1SummarizeRSetStats && (G1SummarizeRSetStatsPeriod > 0) && @@ -5815,7 +5821,6 @@ g1_policy()->update_region_num(true /* next_is_young */); set_region_short_lived_locked(new_alloc_region); _hr_printer.alloc(new_alloc_region, G1HRPrinter::Eden, young_list_full); - g1mm()->update_eden_counters(); return new_alloc_region; } } @@ -5830,6 +5835,10 @@ g1_policy()->add_region_to_incremental_cset_lhs(alloc_region); _summary_bytes_used += allocated_bytes; _hr_printer.retire(alloc_region); + // We update the eden sizes here, when the region is retired, + // instead of when it's allocated, since this is the point that its + // used space has been recored in _summary_bytes_used. + g1mm()->update_eden_size(); } HeapRegion* MutatorAllocRegion::allocate_new_region(size_t word_size,