CRR (XS): 7113006: G1: excessive ergo output when an evac failure happens
tony.printezis at oracle.com
Wed Dec 28 12:04:08 UTC 2011
Can I have a couple of code review for this very small change?
The excessive ergo output was generated by repeated failed heap
expansion attempts during a GC. I slightly expanded (pun unintended!)
the scope of the CR to not only stop generating the ergo output after
the first failed heap expansion but also to not re-attempt the heap
expansion. If heap expansion fails once, it will probably fail again so
it's pointless to keep trying. Without doing a careful and in-depth
performance analysis I see a mild improvement in GC times when an alloc
failure happens with this fix.
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