...
Page Properties | ||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Updates
- Mariam has posted the CRC optimization work for upstream review. This includes methods to generate CRC using clmul, table lookups for RISC-V. For testing purposes it also supports AArch64 and x86_64's clmul variants as well as the x86_64 crc instruction if the proper polynomial is used.
- Simple tests using this code to detect a CRC loop that is compatible with the x86 crc32 instruction and generating the crc32 instruction for such loops show using the crc32 instruction is at least 5X faster than a loop.
- Currently investigating generating aarch64 clmul as there is a bit time to do this as a proof of concept before focusing on the upstreaming effort.
...