Hi Eric, On Wed, Dec 21, 2016 at 4:56 PM, Eric Dumazet <eric.duma...@gmail.com> wrote: > 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.
I'm not sure how George came up with those numbers, but the ones I sent are output from that benchmark function in the last email. I'd be interested in learning this too. As mentioned in the last email, it looks like potential 32-bit issues are really just specific to old Intel chips. Other 32-bit architectures do fine. So, for new kernels, even if somehow there is a tiny performance regression (though I couldn't see one) on old architectures, I really doubt it will affect anybody in practice. Jason