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- Make accelerated checksum available to InnoDB and XtraDB. - Fall back to slice-by-eight if not available. The mode used is printed on startup. - Will only build on POWER systems at the moment until CMakeLists are modified to only add the crc32_power8/ files when building on POWER. running MySQL-5.7 unittest/gunit/innodb/ut0crc32-t Before: 1..2 Using software crc32 implementation, CPU is little-endian ok 1 Using software crc32 implementation, CPU is little-endian normal CRC32: real 0.148006 sec normal CRC32: user 0.148000 sec normal CRC32: sys 0.000000 sec big endian CRC32: real 0.144293 sec big endian CRC32: user 0.144000 sec big endian CRC32: sys 0.000000 sec ok 2 After: 1..2 Using POWER8 crc32 implementation, CPU is little-endian ok 1 Using POWER8 crc32 implementation, CPU is little-endian normal CRC32: real 0.008097 sec normal CRC32: user 0.008000 sec normal CRC32: sys 0.000000 sec big endian CRC32: real 0.147043 sec big endian CRC32: user 0.144000 sec big endian CRC32: sys 0.000000 sec ok 2 Author CRC32 ASM code: Anton Blanchard <anton@au.ibm.com> ref: https://github.com/antonblanchard/crc32-vpmsum Signed-off-by: Daniel Black <daniel.black@au.ibm.com>
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