Re: HalfSipHash Acceptable Usage

On Wed, Dec 21, 2016 at 7:37 PM, George Spelvin
[off-list ref] wrote:

SipHash annihilates the competition on 64-bit superscalar hardware.
SipHash dominates the field on 64-bit in-order hardware.
SipHash wins easily on 32-bit hardware *with enough registers*.
On register-starved 32-bit machines, it really struggles.

As I explained, in that last case, SipHash barely wins at all.
(On a P4, it actually *loses* to MD5, not that anyone cares.  Running
on a P4 and caring about performance are mutually exclusive.)

From the discussion off list which examined your benchmark code, it

looks like we're going to move ahead with SipHash.