From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: [RFC PATCH net-next] tcp: add CDG congestion control Date: Mon, 18 May 2015 15:16:48 -0700 Message-ID: <20150518151648.6d33128c@urahara> References: <1431894670-12609-1-git-send-email-kennetkl@ifi.uio.no> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, David Hayes , Yuchung Cheng , Andreas Petlund To: Kenneth Klette Jonassen Return-path: Received: from mail-pd0-f175.google.com ([209.85.192.175]:34398 "EHLO mail-pd0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750858AbbERWQp (ORCPT ); Mon, 18 May 2015 18:16:45 -0400 Received: by pdbnk13 with SMTP id nk13so71028582pdb.1 for ; Mon, 18 May 2015 15:16:45 -0700 (PDT) In-Reply-To: <1431894670-12609-1-git-send-email-kennetkl@ifi.uio.no> Sender: netdev-owner@vger.kernel.org List-ID: I am really happy to see more congestion control development. > +static int window __read_mostly = 8; > +static bool use_shadow __read_mostly = true; > +static bool use_tolerance __read_mostly; > +static uint backoff_beta __read_mostly = 0.70 * 1024; > +static uint backoff_factor __read_mostly = 333; > +static uint ineffective_thresh __read_mostly = 5; > +static uint ineffective_hold __read_mostly = 5; Module parameters make for rather ugly tuning. They are ok for testing but difficult to use in real life.