Return-Path: Received: from frisell.zx2c4.com ([192.95.5.64]:59785 "EHLO frisell.zx2c4.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726499AbeKUDDK (ORCPT ); Tue, 20 Nov 2018 22:03:10 -0500 Received: by frisell.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 21acca6c for ; Tue, 20 Nov 2018 16:27:01 +0000 (UTC) Received: by frisell.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 7b134e4e (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256:NO) for ; Tue, 20 Nov 2018 16:27:01 +0000 (UTC) Received: by mail-oi1-f179.google.com with SMTP id p82-v6so1981082oih.11 for ; Tue, 20 Nov 2018 08:33:09 -0800 (PST) MIME-Version: 1.0 References: <20181111093630.28107-1-martin@strongswan.org> <20181116022059.aob3ruc7umg32go6@gondor.apana.org.au> <71b15365d7bb59295531b6409b85906e648246a6.camel@strongswan.org> In-Reply-To: <71b15365d7bb59295531b6409b85906e648246a6.camel@strongswan.org> From: "Jason A. Donenfeld" Date: Tue, 20 Nov 2018 17:32:57 +0100 Message-ID: Subject: Re: [PATCH 0/6] crypto: x86/chacha20 - SIMD performance improvements To: Martin Willi Cc: Eric Biggers , Ard Biesheuvel , Linux Crypto Mailing List , X86 ML , Samuel Neves , Herbert Xu Content-Type: text/plain; charset="UTF-8" Sender: linux-crypto-owner@vger.kernel.org List-ID: 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, especially since real testing like this is sometimes more telling than busy-loop benchmarks. > > Actually, similarly here, a 10nm Cannon Lake machine should be > > arriving at my house this week, which should make for some > > interesting testing ground for non-throttled zmm, if you'd like to > > play with it. > > Maybe in a future iteration, thanks. In fact would it be interesting to > know if Cannon Lake can handle that throttling better. Everything I've read on the Internet seems to indicate that's the case, so one of the first things I'll be doing is seeing if that's true. There are also the AVX512 IFMA instructions to play with! Jason