| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2016-07-05 | crypto: powerpc - Add POWER8 optimised crc32c |   Anton Blanchard | |
| Use the vector polynomial multiply-sum instructions in POWER8 to speed up crc32c. This is just over 41x faster than the slice-by-8 method that it replaces. Measurements on a 4.1 GHz POWER8 show it sustaining 52 GiB/sec. A simple btrfs write performance test: dd if=/dev/zero of=/mnt/tmpfile bs=1M count=4096 sync is over 3.7x faster. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> | |||
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index : linux-yocto | |
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