From owner-freebsd-current@freebsd.org Sun Aug 12 17:42:42 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 72EFD1077EC1 for ; Sun, 12 Aug 2018 17:42:42 +0000 (UTC) (envelope-from rozhuk.im@gmail.com) Received: from mail-lf1-x133.google.com (mail-lf1-x133.google.com [IPv6:2a00:1450:4864:20::133]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id CE095731A2 for ; Sun, 12 Aug 2018 17:42:41 +0000 (UTC) (envelope-from rozhuk.im@gmail.com) Received: by mail-lf1-x133.google.com with SMTP id l16-v6so9701880lfc.13 for ; Sun, 12 Aug 2018 10:42:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:date:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=+v9NjBhwLAaJe/EbVJhx9vAYTfxFlbRRAjgjSkyUqxY=; b=qn6p7pGS7xCbeEAudqsgCV0UCDKjw0EXSIqt4uVJa7aVsad2C9ezhgT3IRUlZAPPm7 RIXXASFXco/A4xeOwuCYlP/+DvDeqUWYRTQsnwwp2x0aI4CKgKTbng2hTX5L0d1+JmUU 81XlslJLd6CUVKrFxKtKRGEs69oCZ7KgDB67mzn6YXql6VffeWMkyr0GQ0zm4lh4vb8K vil5LIFW/GJ7Ju4HMgCpjnAQMG8kh7+5XOaxwgBXX/09EzwA5di0QPL6ANGZtXd5ZEX0 MOywHSPZE+It1WTeKimGqgpx8VPbgy3iRIeV4XDzQZfOcipxmAJc8iBVWqmT2Cic4zng L82Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=+v9NjBhwLAaJe/EbVJhx9vAYTfxFlbRRAjgjSkyUqxY=; b=R7RqlSzuE+189QsKjBGXks/yu9WmTQeJfv9KgX5k6mAqe8a3VRkf7megeIztzKWU9J RDSmc/yryRvZaQJJsNfQ7v3xktL6YXjHEYzJfn1FqCMr8kl+nby9S0oaJ6Y+BJ+MwyNV AKZjC1l6JhuszQExydrbDmu35sjhr0CpbBJEO8WBONsyNa/6oIRi5XhRM1k58GgWDuuP ynpyyl+48vcIwq8QM+VIGJhAdB3YkgxzXCT6+72LAJZSl1f6ZCrqbuJlXVUMp4y+NZTk S5xCQ0D3qaxfyWuJgWwLFAYgbXLHttUC5X+sSjridnu2jBseh9goXazbgdtkcgNI9/aj J4TA== X-Gm-Message-State: AOUpUlENsWoTIiD1ZLbuTGVLla7qMQNcGpX8dT3HC3h9j73rB0vkCEHd X7A0Nv2G4uou8hegENybCVSczaHh X-Google-Smtp-Source: AA+uWPwW+nne+LIt/2bUQkkqnym/mFEJCW9UCYCi04FhmbnXZJ+2dBc//6al0XvZSb1MVZZcugt3bA== X-Received: by 2002:a19:ec04:: with SMTP id b4-v6mr9088778lfa.91.1534095759684; Sun, 12 Aug 2018 10:42:39 -0700 (PDT) Received: from localhost ([2001:470:1f15:3d8:7285:c2ff:fe37:5722]) by smtp.gmail.com with ESMTPSA id q19-v6sm2679066lje.29.2018.08.12.10.42.38 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 12 Aug 2018 10:42:38 -0700 (PDT) From: Rozhuk Ivan X-Google-Original-From: Rozhuk Ivan Date: Sun, 12 Aug 2018 20:42:33 +0300 To: Honda Michio Cc: freebsd-current@freebsd.org Subject: Re: TCP server app performance Message-ID: <20180812204233.0fcc4f04@gmail.com> In-Reply-To: References: X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; amd64-portbld-freebsd11.1) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Aug 2018 17:42:42 -0000 On Sun, 12 Aug 2018 18:50:17 +0200 Honda Michio wrote: > I'm measuring TCP server app performance using my toy web server. > It just accept TCP connections and responds back HTTP OK to the > clients. It monitors sockets using kqueue, and processes each ready > descriptor using a pair of read() and write(). (in more detail, it's > https://github.com/micchie/netmap/tree/paste/apps/phttpd) 1. Call accept() in loop until get error. 2. Use reuseport option for load balance.