From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lucas Nussbaum Subject: Re: [PATCH 3/3] tcp_cubic: fix low utilization of CUBIC with HyStart Date: Mon, 14 Mar 2011 07:28:24 +0100 Message-ID: <20110314062824.GA22755@xanadu.blop.info> References: <1300061073-24209-1-git-send-email-sangtae.ha@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Stephen Hemminger , David Miller , Injong Rhee , Bill Fink , netdev@vger.kernel.org To: Sangtae Ha Return-path: Received: from xanadu.blop.info ([178.79.145.134]:48781 "EHLO xanadu.blop.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752158Ab1CNG1h (ORCPT ); Mon, 14 Mar 2011 02:27:37 -0400 Content-Disposition: inline In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On 13/03/11 at 19:07 -0500, Sangtae Ha wrote: > Hi Lucas, >=20 > Thank you for reporting this problem and the results below show what > happened with low resolution clocks. > The detailed testing setup and results at > http://netsrv.csc.ncsu.edu/wiki/index.php/HyStart_testing_between_Pri= nceton_and_NCSU > I will add the results in long rtt paths soon. Thanks. What do you use to generate those graphs? The graphs from HyStart(fixed) are a bit strange. Did HyStart really detect something? It seems that it exited slow start due to losses, not due to detection, since cwnd is decreased. --=20 | Lucas Nussbaum MCF Universit=E9 Nancy 2 | | lucas.nussbaum@loria.fr LORIA / AlGorille | | http://www.loria.fr/~lnussbau/ +33 3 54 95 86 19 |