On Wed, 2016-12-21 at 07:56 -0800, Eric Dumazet wrote: > On Wed, 2016-12-21 at 15:42 +0100, Jason A. Donenfeld wrote: > George said : > > > Cycles per byte on 1024 bytes of data: > >                       Pentium Core 2  Ivy > >                       4       Duo     Bridge > > SipHash-2-4           38.9     8.3     5.8 > > HalfSipHash-2-4       12.7     4.5     3.2 > > MD5                    8.3     5.7     4.7 > > > That really was for 1024 bytes blocks, so pretty much useless for our > discussion ? > > Reading your numbers last week, I thought SipHash was faster, but > George > numbers are giving the opposite impression. > > I do not have a P4 to make tests, so I only can trust you or George. Does anybody still have a P4? If they do, they're probably better off replacing it with an Atom. The reduced power bills will pay for replacing that P4 within a year or two. In short, I am not sure how important the P4 performance numbers are, especially if we can improve security for everybody else... -- All Rights Reversed.