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diff src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp @ 3764:053d84a76d3d

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7032531: G1: enhance GC logging to include more accurate eden / survivor size transitions Summary: This changeset extends the logging information generated by +PrintGCDetails to also print out separate size transitions for the eden, survivors, and old regions. Reviewed-by: ysr, brutisso
author tonyp
date Wed, 08 Jun 2011 15:31:51 -0400
parents 2aa9ddbb9e60
children c3f1170908be
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	Wed Jun 08 08:39:53 2011 -0700
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	Wed Jun 08 15:31:51 2011 -0400
@@ -103,6 +103,19 @@
   size_t       length() { return _length; }
   size_t       survivor_length() { return _survivor_length; }
 
+  // Currently we do not keep track of the used byte sum for the
+  // young list and the survivors and it'd be quite a lot of work to
+  // do so. When we'll eventually replace the young list with
+  // instances of HeapRegionLinkedList we'll get that for free. So,
+  // we'll report the more accurate information then.
+  size_t       eden_used_bytes() {
+    assert(length() >= survivor_length(), "invariant");
+    return (length() - survivor_length()) * HeapRegion::GrainBytes;
+  }
+  size_t       survivor_used_bytes() {
+    return survivor_length() * HeapRegion::GrainBytes;
+  }
+
   void rs_length_sampling_init();
   bool rs_length_sampling_more();
   void rs_length_sampling_next();