On Fri, Jul 01, 2016 at 08:19:45AM +1000, Anton Blanchard wrote: > From: Anton Blanchard <anton@xxxxxxxxx> > > 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@xxxxxxxxx> Both patches applied. Thanks. -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
