RFR(L): 8198894: [PPC64] More generic vector CRC implementation

Doerr, Martin martin.doerr at sap.com
Thu Mar 1 15:49:49 UTC 2018


I have implemented a more generic version of the vector instruction based CRC code.
It supports CRC32C and Big Endian, too.

The peak performance was even better for large input streams. I got almost 40GB/s.
Some smaller length may be slower than with the old version.
Maybe somebody from IBM would like to double-check performance.

Please review:
(hoping you like math :))

Best regards,

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/attachments/20180301/53768253/attachment.html>

More information about the hotspot-compiler-dev mailing list