Mercurial > hg > icedtea8-forest > hotspot
changeset 892:83b687ce3090
6866591: G1: print update buffer processing stats more often
Summary: It adds parameter -XX:+G1SummarizeRSetStatsPeriod that causes update buffer processing information to be printed periodically. It also includes two small formatting changes.
Reviewed-by: jmasa, jcoomes, ysr
| author | tonyp |
|---|---|
| date | Thu, 30 Jul 2009 14:50:58 -0400 |
| parents | 27f6a9b9c311 |
| children | 7f807f55161a |
| files | src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp src/share/vm/gc_implementation/g1/g1_globals.hpp |
| diffstat | 2 files changed, 13 insertions(+), 2 deletions(-) [+] |
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Wed Jul 29 11:01:26 2009 -0400 +++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Thu Jul 30 14:50:58 2009 -0400 @@ -2845,6 +2845,11 @@ if (PrintHeapAtGC) { Universe::print_heap_after_gc(); } + if (G1SummarizeRSetStats && + (G1SummarizeRSetStatsPeriod > 0) && + (total_collections() % G1SummarizeRSetStatsPeriod == 0)) { + g1_rem_set()->print_summary_info(); + } } void G1CollectedHeap::set_gc_alloc_region(int purpose, HeapRegion* r) {
--- a/src/share/vm/gc_implementation/g1/g1_globals.hpp Wed Jul 29 11:01:26 2009 -0400 +++ b/src/share/vm/gc_implementation/g1/g1_globals.hpp Thu Jul 30 14:50:58 2009 -0400 @@ -34,7 +34,7 @@ product(intx, G1ConfidencePercent, 50, \ "Confidence level for MMU/pause predictions") \ \ - develop(intx, G1MarkingOverheadPercent, 0, \ + develop(intx, G1MarkingOverheadPercent, 0, \ "Overhead of concurrent marking") \ \ develop(bool, G1AccountConcurrentOverhead, false, \ @@ -47,7 +47,7 @@ develop(bool, G1Gen, true, \ "If true, it will enable the generational G1") \ \ - develop(intx, G1GCPercent, 10, \ + develop(intx, G1GCPercent, 10, \ "The desired percent time spent on GC") \ \ develop(intx, G1PolicyVerbose, 0, \ @@ -74,6 +74,12 @@ diagnostic(bool, G1SummarizeRSetStats, false, \ "Summarize remembered set processing info") \ \ + diagnostic(intx, G1SummarizeRSetStatsPeriod, 0, \ + "The period (in number of GCs) at which we will generate " \ + "update buffer processing info " \ + "(0 means do not periodically generate this info); " \ + "it also requires -XX:+G1SummarizeRSetStats") \ + \ diagnostic(bool, G1SummarizeZFStats, false, \ "Summarize zero-filling info") \ \