Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8268276

Base64 Decoding optimization for x86 using AVX-512

    XMLWordPrintable

Details

    • b04
    • x86

    Backports

      Description

        Add the Base64 Decode intrinsic for x86 to utilize AVX-512 for acceleration. Also allows for performance improvement for non-AVX-512 enabled platforms. Due to the nature of MIME-encoded inputs, modify the intrinsic signature to accept an additional parameter (isMIME) for fast-path MIME decoding.

        Attachments

          Issue Links

            backported by

            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-8296735 Base64 Decoding optimization for x86 using AVX-512

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8296885 Base64 Decoding optimization for x86 using AVX-512

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

            Enhancement - null JDK-8193057 Hardware accelerated Base64 support is needed

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8270323 Regression > 3% in Perfstartup-Noop-G1 in 18-b4

            • 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-8321599 Data loss in AVX3 Base64 decoding

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8273108 RunThese24H crashes with SEGV in markWord::displaced_mark_helper() after JDK-8268276

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

            Commit Commit openjdk/jdk17u-dev/07050b00

            Commit Commit openjdk/jdk/c37988d0

            Review Review openjdk/jdk17u-dev/840

            Review Review openjdk/jdk17u-dev/860

            Review Review openjdk/jdk/4368

            Activity

              People

                sgibbons Scott Gibbons
                sviswanathan Sandhya Viswanathan
                Votes:
                0 Vote for this issue
                Watchers:
                7 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: