Hi Milan, On Sun, 2017-03-12 at 00:38 +0000, Milan Mimica wrote: > Hi again > > I have tried -XX:G1RSetSparseRegionEntries=64 and it did reduce > native memory usage: > - Internal (reserved=1203MB, committed=1203MB) > (malloc=1203MB #329024) > vs. > > - Internal (reserved=2155MB, committed=2155MB) > (malloc=2155MB #567485) > > There is no measurable performance impact.
Great to hear, and also somewhat expected :) Did you check the memory increase for the mtGC category does not use up all the savings in the mtInternal category? > I have a question: why is BitMap PerRegionTable::_bm allocated using > mtInternal memory qualifier? Wouldn't mtGC be a better fit? I filed JDK-8176571. Thanks, Thomas _______________________________________________ hotspot-gc-use mailing list hotspot-gc-use@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/hotspot-gc-use
