From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Date: Sun, 02 Sep 2007 11:45:42 +0000 Subject: Re: [LARTC] Clock Source Kernel settings in 2.6.22 Message-Id: <46DAA266.8070601@trash.net> List-Id: References: <45E4FD623F464B30A0067FF269007B89@shadow> In-Reply-To: <45E4FD623F464B30A0067FF269007B89@shadow> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org [Please keep me in CC/To, I don't read lartc often] Mario Antonio Garcia wrote: > I used to get an average of 18900kbit. > My hope was that these new patches would bring better accuracy. Well, you're up from 94.5% to 99.95%, so they seem to do :) > Notice the 24 cburst. I am just trying to compensate the inaccuracy > this way. If I remove the cburst, obviously the shape rate I get goes > down. > > Perhaps I am missing something. I am just a novice trying to get > exact bandwidth shaping. I have tested all the clock source types with > no good results. A couple of comments: - The patches so far only improve things on x86 - Try to test using UDP (not sure if you did) or simply a ping flood, TCP is not ideal. - iproute calculates burst values automatically. With the higher precision clock source you can use a smaller value (also done automatically if you don't specify them). - HFSC is more precise than HTB (and not the least more complicated to configure if you use only linear service curves) _______________________________________________ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc