hg: hsx/hotspot-gc/hotspot: 7113006: G1: excessive ergo output when an evac failure happens

[tony.printezis at oracle.com]

Changeset: bacb651cf5bf
Author:    tonyp
Date:      2012-01-05 05:54 -0500
URL:       http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/bacb651cf5bf

7113006: G1: excessive ergo output when an evac failure happens
Summary: Introduce a flag that is set when a heap expansion attempt during a GC fails so that we do not consantly attempt to expand the heap when it's going to fail anyway. This not only prevents the excessive ergo output (which is generated when a region allocation fails) but also avoids excessive and ultimately unsuccessful expansion attempts.
Reviewed-by: jmasa, johnc

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp