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  1. JikesRVM
  2. RVM-341

Improved copying in org.jikesrvm.runtime.Memory

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      r13857 improved memory copying for Intel with SSE2 so that we used 64bit copies rather than 32bit copies. This gave a large number of speed ups:

      http://jikesrvm.anu.edu.au/cattrack/results/rvmx86lnx32.anu.edu.au/perf/1790/performance_report

      most notably on SpecJBB 2000. There is a low-hanging fruit to improve this further, for example, by using 128bit copies and using more than 1 register to do the copying.

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            • Assignee:
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              Reporter:
              ianrogers Ian Rogers
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