3 Commits

Author SHA1 Message Date
Thomas Schatzl
a07b2194f7 8036860: Pad and cache-align the BiasedMappedArray
Pad and cache-align BiasedMappedArray instances by default to avoid performance variability problems due to false sharing, as instances of this data structures are typically used for performance sensitive code.

Reviewed-by: brutisso, stefank
2014-03-17 13:07:55 +01:00
Stefan Johansson
a23ee6de8d 8031686: G1: assert(_hrs.max_length() == _expansion_regions) failed
Using pointer_delta to avoid overflowing pointer calculation.

Reviewed-by: jmasa, tschatzl
2014-01-20 10:55:54 +01:00
Thomas Schatzl
ab5637182c 7163191: G1: introduce a "heap spanning table" abstraction
Add G1BiasedArray<T> that is an array where each element represents a fixed-sized subdivision of the heap. Use this abstraction to refactor the HeapRegionSeq class.

Reviewed-by: brutisso
2013-09-25 13:25:24 +02:00