From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Jason@zx2c4.com Received: from krantz.zx2c4.com (localhost [127.0.0.1]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 73912d0b for ; Tue, 10 Jul 2018 14:50:05 +0000 (UTC) Received: from frisell.zx2c4.com (frisell.zx2c4.com [192.95.5.64]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 7fc41266 for ; Tue, 10 Jul 2018 14:50:04 +0000 (UTC) Received: by frisell.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 1d6a497f for ; Tue, 10 Jul 2018 14:48:50 +0000 (UTC) Received: by frisell.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id ea324a5b (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128:NO) for ; Tue, 10 Jul 2018 14:48:50 +0000 (UTC) Received: by mail-oi0-f50.google.com with SMTP id q11-v6so17590459oic.12 for ; Tue, 10 Jul 2018 07:57:26 -0700 (PDT) MIME-Version: 1.0 References: <20180710195436.357fb972@natsu> In-Reply-To: <20180710195436.357fb972@natsu> From: "Jason A. Donenfeld" Date: Tue, 10 Jul 2018 16:57:14 +0200 Message-ID: Subject: Re: [ANNOUNCE] WireGuard Snapshot `0.0.20180708` Available To: Roman Mamedov Content-Type: text/plain; charset="UTF-8" Cc: WireGuard mailing list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hey Roman, Thanks for the update. That's great to hear. The latest snapshot will still have the same preemption relaxation with simd_relax(), but gets performance gains by moving to napi, so it's still faster overall. If you want the simd_relax() to not take a hit and get maximum throughput, the right way of doing this is actually to just disable preemption in your kernel with PREEMPT_NONE=y. Jason