Hi Martin,
On Tue, Nov 20, 2018 at 5:29 PM Martin Willi wrote:
> Thanks for the offer, no need at this time. But I certainly would
> welcome if you could do some (Wireguard) benching with that code to see
> if it works for you.
I certainly will test it in a few different network circumstances,
Hi Jason,
> [...] I have a massive Xeon Gold 5120 machine that I can give you
> access to if you'd like to do some testing and benching.
Thanks for the offer, no need at this time. But I certainly would
welcome if you could do some (Wireguard) benching with that code to see
if it works for you.
Hi Martin,
On Mon, Nov 19, 2018 at 8:52 AM Martin Willi wrote:
>
> Adding AVX-512VL support is relatively simple. I have a patchset mostly
> ready that is more than competitive with the code from Zinc. I'll clean
> that up and do more testing before posting it later this week.
Terrific.
Hi Jason,
> I'd be inclined to roll with your implementation if it can eventually
> become competitive with Andy Polyakov's, [...]
I think for the SSSE3/AVX2 code paths it is competitive; especially for
small sizes it is faster, which is not that unimportant when
implementing layer 3 VPNs.
>
On Sun, Nov 11, 2018 at 10:36:24AM +0100, Martin Willi wrote:
> This patchset improves performance of the ChaCha20 SIMD implementations
> for x86_64. For some specific encryption lengths, performance is more
> than doubled. Two mechanisms are used to achieve this:
>
> * Instead of calculating the
Hi Martin,
This is nice work, and given that it's quite clean -- and that it's
usually hard to screw up chacha in subtle ways when test vectors pass
(unlike, say, poly1305 or curve25519), I'd be inclined to roll with
your implementation if it can eventually become competitive with Andy
On Sun, Nov 11, 2018 at 10:36:24AM +0100, Martin Willi wrote:
> This patchset improves performance of the ChaCha20 SIMD implementations
> for x86_64. For some specific encryption lengths, performance is more
> than doubled. Two mechanisms are used to achieve this:
>
> * Instead of calculating the
This patchset improves performance of the ChaCha20 SIMD implementations
for x86_64. For some specific encryption lengths, performance is more
than doubled. Two mechanisms are used to achieve this:
* Instead of calculating the minimal number of required blocks for a
given encryption length,
