From patchwork Mon Feb 5 02:07:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tonghao Zhang X-Patchwork-Id: 869133 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="HATdqN7Q"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zZWFB2H0fz9sBW for ; Mon, 5 Feb 2018 13:07:26 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752309AbeBECHX (ORCPT ); Sun, 4 Feb 2018 21:07:23 -0500 Received: from mail-pl0-f68.google.com ([209.85.160.68]:45816 "EHLO mail-pl0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751979AbeBECHV (ORCPT ); Sun, 4 Feb 2018 21:07:21 -0500 Received: by mail-pl0-f68.google.com with SMTP id p5so10768884plo.12 for ; Sun, 04 Feb 2018 18:07:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=Ffjdw8DsbDLq1+kvBv8CCde2jY1TNLG9vOR+m8/JS8s=; b=HATdqN7QL6XaIRfVtiFQ9EQAlQJZd6dvxI1wKBD926++3wQRW6S19WCBSXG/He/EW+ 269HMS9+yTzLtHmH9pT+IQXDVPedsrlPmcwNCB8F1vywAHGsiaIcUHNGJwUKKHxD8TKw p5jc55PgJ/CStDMb3XHwhKfpiwjQ0St0AqubivbtLI2FH8RNb81Z94bxIBirmCBgBKRp cYFYUiao2PJW6XHlkw7AKAMxffybjHLwVOsy8f6hPG9Ic//9S4cvTHQ/krmFkBshvDX5 hNMRqUk1yHQMax5Kw1rocAg6SAD/vo1NfZQeGtL78IK5gY4zuTQu7A2yJONptQwt/p8Z jCQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=Ffjdw8DsbDLq1+kvBv8CCde2jY1TNLG9vOR+m8/JS8s=; b=rrscSGb7pnO2+7D/TDbL/4BuI+H4dImtLmjtbXbYbSwbehAaguS8CR/2ylozdXxSIY m+EMYQEUyYWnuKK+Ftdqm2GCY9ERsiAWvtQmULC2v7A8a3JV9gE9goolfAz5NqirAGEF 3++5AkvTsJV9NJ+BKN4vqlL6exJUM+RGnHyHeyW/LNIv4b1f4w5exkIJpljSg+C57p2F 4tZmWYhIb+YiXnvBydqc6u3xCKXZ4NLQdZ1xLYEi6+e/HGLKJZ6twwu742xcXhlryKxW QhNxww7ThoQPVGJufWrcHX7KTJ61FZu6kMkVgDXfZuKiPLfqJVfQqnPolVdfHt2KrcBR xlHA== X-Gm-Message-State: AKwxytc0wVvryvfnqJcjArodqoAweUu0uNH9lDXZaJTXhrRXLwy8+LT0 DO3hVH6IbUq4+PKjm+4w62oimjvf X-Google-Smtp-Source: AH8x2276xKpU8KtZSg1mY34ixMXCoRL1vB8dcQBuRBgIXfeDl0iQOUhugzYC9xi8eHjx3Z7SALP+Ug== X-Received: by 2002:a17:902:b709:: with SMTP id d9-v6mr11867254pls.119.1517796440467; Sun, 04 Feb 2018 18:07:20 -0800 (PST) Received: from local.opencloud.tech.localdomain ([23.102.225.250]) by smtp.gmail.com with ESMTPSA id u86sm13926336pfa.102.2018.02.04.18.07.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 04 Feb 2018 18:07:19 -0800 (PST) From: Tonghao Zhang To: netdev@vger.kernel.org Cc: Tonghao Zhang , Eric Dumazet Subject: [PATCH] doc: Change the min default value of tcp_wmem/tcp_rmem. Date: Sun, 4 Feb 2018 18:07:10 -0800 Message-Id: <1517796430-4335-1-git-send-email-xiangxia.m.yue@gmail.com> X-Mailer: git-send-email 1.8.3.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The SK_MEM_QUANTUM was changed from PAGE_SIZE to 4096. And the tcp_wmem/tcp_rmem min default values are 4096. Fixes: bd68a2a854ad ("net: set SK_MEM_QUANTUM to 4096") Cc: Eric Dumazet Signed-off-by: Tonghao Zhang --- Documentation/networking/ip-sysctl.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 3f2c40d..a553d4e 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -508,7 +508,7 @@ tcp_rmem - vector of 3 INTEGERs: min, default, max min: Minimal size of receive buffer used by TCP sockets. It is guaranteed to each TCP socket, even under moderate memory pressure. - Default: 1 page + Default: 4K default: initial size of receive buffer used by TCP sockets. This value overrides net.core.rmem_default used by other protocols. @@ -667,7 +667,7 @@ tcp_window_scaling - BOOLEAN tcp_wmem - vector of 3 INTEGERs: min, default, max min: Amount of memory reserved for send buffers for TCP sockets. Each TCP socket has rights to use it due to fact of its birth. - Default: 1 page + Default: 4K default: initial size of send buffer used by TCP sockets. This value overrides net.core.wmem_default used by other protocols.