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  1. JDK
  2. JDK-8222532

(zipfs) Performance regression when writing ZipFileSystem entries in parallel

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    • Subcomponent:
    • Introduced In Build:
      b12
    • Introduced In Version:
      12
    • Resolved In Build:
      b18

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        Reported by Lennart Börjeson here: http://mail.openjdk.java.net/pipermail/core-libs-dev/2019-April/059734.html

        Narrowed down the cause as JDK-8034802 due changing deflation to only happen when syncing the ZipFileSystem whereas it previously happened eagerly when closing output streams retrieved via Files.newOutputStream: http://mail.openjdk.java.net/pipermail/core-libs-dev/2019-April/059753.html

        Proof-of-concept patch that recuperates the parallelism in the default case: http://cr.openjdk.java.net/~redestad/scratch/zfs.eager_deflation.00/

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                Assignee:
                redestad Claes Redestad
                Reporter:
                redestad Claes Redestad
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