Diagnosing performance cliffs on JDK7.

[MacGregor, Duncan (GE Energy)]

On 20/08/2012 20:47, "Christian Thalinger"
<christian.thalinger at oracle.com> wrote:
>On Aug 20, 2012, at 12:02 PM, "MacGregor, Duncan (GE Energy)"
><duncan.macgregor at ge.com> wrote:
>
>> While trying to do some minor performance tuning on how we handle
>>multiple return results I've finally managed to consistently provoke a
>>performance cliff in our benchmarks. Logging compilation I see that the
>>method in question is compiled a couple of times and then produces a
>> 
>> COMPILE SKIPPED: out of nodes before macro expansion (not retry able)
>
>What JDK version are you seeing this problem with?

JDK 1.7.0 update 4, hotspot 23.0.b21