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  1. JDK
  2. JDK-8272122

PS: Add prefetch before copy in PSPromotionManager::copy_unmarked_to_survivor_space

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    • Enhancement
    • Resolution: Unresolved
    • P4
    • tbd
    • 18
    • hotspot
    • gc

    Description

      We've found that it improve specjbb(especially critical) a lot by add prefetch before copy in PSPromotionManager::copy_unmarked_to_survivor_space.

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          relates to

          Enhancement - null JDK-8269870 PS: Membar in PSPromotionManager::copy_unmarked_to_survivor_space could be relaxed

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

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              mli Hamlin Li
              mli Hamlin Li
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                Created:
                Updated: