On Mon, Dec 1, 2014 at 4:06 PM, Alex Elsayed <eternaleye@xxxxxxxxx> wrote: > https://github.com/openssl/openssl/blob/master/crypto/sha/asm/sha1-armv8.pl > > # hardware-assisted software(*) > # Apple A7 2.31 4.13 (+14%) > # Cortex-A53 2.19 8.73 (+108%) > # Cortex-A57 2.35 7.88 (+74%) Note that those are showing 2 cycles per byte. > From the CityHash readme, on a Xeon X5550 (which is _considerably_ more > powerful than any of the above): > > On a single core of a 2.67GHz Intel Xeon X5550, CityHashCrc256 peaks at > about 5 to 5.5 bytes/cycle. 5 bytes per cycle is 0.2 cycles per byte. So your own citation shows that CityHash is 10 times faster. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
