From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerrit Renker Date: Mon, 16 Aug 2010 05:19:02 +0000 Subject: Re: Problems with idle DCCP connections Message-Id: <20100816051902.GC3571@gerrit.erg.abdn.ac.uk> List-Id: References: <1280524030.9374.108.camel@sjerolaptop.homelinux.net> In-Reply-To: <1280524030.9374.108.camel@sjerolaptop.homelinux.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: dccp@vger.kernel.org Hi Samuel, thank you very much for testing. | I do, however, see a bunch of messages like the following | in /var/log/messages when using CCID-3: "dccp_sane_rtt: RTT sample | 8644424 out of bounds!" | This message warns that the network has an unusually high RTT (8.64 seconds). The warning is issued whenever the RTT exceeds 3 seconds, to avoid that the sending rate of CCID-3 is reduced too much (since X is proportional to s/RTT). #define DCCP_SANE_RTT_MAX (3 * USEC_PER_SEC) | I will pull the current tree and double check it; however, my problem | (or at least the symptoms) appears to be fixed without CWV. I'll let you | know how the new tree works by Monday or Tuesday. I would be very interested in any performance reports and comments.