From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-we0-f171.google.com (mail-we0-f171.google.com [74.125.82.171]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id EB7CD200B1B for ; Wed, 23 May 2012 22:27:43 -0700 (PDT) Received: by wejx9 with SMTP id x9so10733904wej.16 for ; Wed, 23 May 2012 22:27:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=oS8JjHMs5uLH/g6FMY6CkjfZ+jGj8XJYQbgmnBYnKPY=; b=EFfnso/KLagRybfJeOgAEsvUck39eZOjqg6t/6J3F19BNIFGGBl9g93+/0EwxoQMlV AFO5SNe9Vw0QyDK/Dgxiz6UsBu1ixLsf655128oJMGfrLnMQoG6QwCXAqlu8ijx/uktk ONTXrts2IrIpmmzLPvjATgroKNlfIYLdEAcavfFpYLjv+FzLF12EoKSZClOrFY13Y2nV Vu/ACRpfp/0gWABd+Hu1VbwHk2hc9HxTrsm2UGeu0/cSed1HJEGWa85rwEwZ67acdAIe QASnIb+wB5KczACr987v/otxe9e9tMbjF2SY6A9xI7FMcWYMr8yts9mkUb/2r47aHQkq hvbg== MIME-Version: 1.0 Received: by 10.180.88.233 with SMTP id bj9mr19479904wib.1.1337837260522; Wed, 23 May 2012 22:27:40 -0700 (PDT) Received: by 10.223.115.9 with HTTP; Wed, 23 May 2012 22:27:40 -0700 (PDT) In-Reply-To: <1337835239.3361.3954.camel@edumazet-glaptop> References: <1337834034-27803-1-git-send-email-subramanian.vijay@gmail.com> <1337835239.3361.3954.camel@edumazet-glaptop> Date: Thu, 24 May 2012 06:27:40 +0100 Message-ID: From: Dave Taht To: codel@lists.bufferbloat.net Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Subject: [Codel] Fwd: [PATCH IPROUTE2] tc-codel: Add manpage X-BeenThere: codel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: CoDel AQM discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 May 2012 05:27:45 -0000 ---------- Forwarded message ---------- From: Eric Dumazet Date: Thu, May 24, 2012 at 5:53 AM Subject: Re: [PATCH IPROUTE2] tc-codel: Add manpage To: Vijay Subramanian Cc: netdev@vger.kernel.org, Stephen Hemminger , Dave Taht On Wed, 2012-05-23 at 21:33 -0700, Vijay Subramanian wrote: > This patch adds the manpage for the CoDel (Controlled-Delay) AQM. > > Signed-off-by: Vijay Subramanian > --- Thanks ! > +.SS target > +is the acceptable minimum standing/persistent queue delay. This minimum = delay > +is identified by tracking the local minimum queue delay that packets exp= erience. > +Default and recommended value is 5ms. Although I can tell I prefer lower values on hosts. On 10Gbe links, I used 500us target > + > +.SS interval > +is used to ensure that the measured minimum delay does not become too st= ale. The > +minimum delay must be experienced in the last epoch of length > +.B interval. > +It should be set on the order of the worst-case RTT through the bottlene= ck to > +give endpoints sufficient time to react. =A0Default value is 100ms. Same here. In a datacenter, you might reduce this to 20ms or so... --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://www.bufferbloat.net