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  1. MariaDB Server
  2. MDEV-22641

Provide SIMD optimized wrapper for zlib crc32()

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    Description

      Currently, MariaDB uses a hardware optimized version of the zlib crc32() function for x86 only in mariabackup (crc32_iso3309() is using the pclmul instruction). For POWER, it could be (but has not yet been) optimized by using the vpmsum instruction.

      We should make an optimized implementation available across all platforms (x86, ARMv8, POWER) and replace all direct calls to crc32_iso3309() or the the zilb function crc32() with calls to a new wrapper function my_crc32(), until the acceleration has been integrated in zlib.

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        Issue Links

          blocks

          Task - A task that needs to be done. MDEV-19935 Create unified CRC-32 interface

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-22749 Implement portable PCLMUL accelerated crc32() with Intel intrinsics

          • Major - Major loss of function.
          • Closed
          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-23585 checksum.c: only use clmul if available

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-22669 InnoDB lacks CRC-32C acceleration on IA-32

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-22887 compilation failure on xenial-ppc64le

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

          Activity

            marko Marko Mäkelä added a comment -

            Because these changes depend on ARM acceleration of CRC-32C that was implemented earlier in 10.5, let us only target 10.5 for now.

            marko Marko Mäkelä added a comment - Because these changes depend on ARM acceleration of CRC-32C that was implemented earlier in 10.5, let us only target 10.5 for now.

            People

              marko Marko Mäkelä
              krunalbauskar Krunal Bauskar
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                Updated:
                Resolved:

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