Benchmark scenario with high G1 performance degradation

[Jens Wilke]

On Freitag, 21. April 2017 18:03:45 ICT Jens Wilke wrote:
> Please mind the core count. My stomach tells me that it could have something
> to do with the hash table arrays. When you are testing with a system that
> reports more than 8 cores the allocated arrays will be smaller than in my
> case, since the cache is doing segmentation.

Update: I did some tests with different segmentation levels (up to 512) to 
reduce the internal hashtable array size in cache2k. The high CPU consumption 
via OtherRegionsTable::add_reference is still present. So this does not seem 
the problem cause.

Best,

Jens

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