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  1. JDK
  2. JDK-8222532

(zipfs) Performance regression when writing ZipFileSystem entries in parallel

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    • b12
    • 12
    • b18

    Backports

      Description

        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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            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8223720 (zipfs) Performance regression when writing ZipFileSystem entries in parallel

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8223792 (zipfs) Performance regression when writing ZipFileSystem entries in parallel

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8228941 (zipfs) Performance regression when writing ZipFileSystem entries in parallel

            • P3 - Major loss of function.
            • Resolved
            duplicates

            Enhancement - null JDK-8223401 Inefficiency in ZipFileSystem.sync()

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8034802 (zipfs) newFileSystem throws UOE when the zip file is located in a custom file system

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8223597 (zipfs) jdk/nio/zipfs/ZipFSTester.java RuntimeException: CHECK_FAILED! (getAttribute.crc <entries20> failed 6af4413c vs 0 ...)

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8229887 (zipfs) zip file corruption when replacing an existing STORED entry

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

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