From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alessio Botta Date: Wed, 12 Dec 2007 23:21:20 +0000 Subject: Re: [Announce]: Test results with latest CCID3 patch set Message-Id: <47606CF0.7010007@unina.it> List-Id: References: <20071210154008.GA16839@gerrit.erg.abdn.ac.uk> In-Reply-To: <20071210154008.GA16839@gerrit.erg.abdn.ac.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: dccp@vger.kernel.org Arnaldo Carvalho de Melo ha scritto: > Em Tue, Dec 11, 2007 at 02:21:28PM +0000, Gerrit Renker escreveu: >> | I am new of this mailing list and I am really interested in the >> | measurements you are performing with DCCP. >> This was more of a regression test, as there had been recent changes in >> the test tree, to see that the kernel (not userspace) still performs in >> a predictable way. >> >> | Which tool are you using ? Are you using Iperf for such measurements ? >> The setup is the one from >> http://www.linux-foundation.org/en/Net:DCCP_Testing#Regression_testing >> and, yes, it uses iperf. >> >> | Have you ever heard about D-ITG ? >> >> | You can find more information here: >> | http://www.grid.unina.it/software/ITG >> | >> | I am one of the authors of such platform and I have also >> | performed some very preliminary tests with DCCP. >> | >> | I would be very glad to have your opinion on that and I'm very interested >> | in improving its features, also with specific regard to the support of >> | transport protocols. >> | >> It is a very nice tool with many features. I only ran simple tests with it (version 2.6), >> again only as basic sanity tests -- the throughput result was similar to the one tested with >> iperf. >> >> I think that the tool has more to offer and can help improve/extend DCCP testing. >> Here is my list of points, hoping that the others will add theirs, too: >> >> * would be good to have a standardised set of scripts, for comparison/benchmarking >> >> * the built-in VoIP module only works for UDP -- is it possible to port this to DCCP? >> >> * as per previous email, more complex traffic scenarios would be good, in particular >> - switching on/off background traffic at times to observe TCP/flow-friendliness >> - running multiple DCCP flows in parallel and at overlapping times > > Does this tool records results in a database keyed by kernel > version/buildid for us to use it as a regression tool? No, it does not record the results in a database. This feature has to be added by using some perl-like scripts. > > Something that would produce results around these lines: > > "WARNING: test #23 counter #3 variance bigger than specified since the > last kernel tested (git cset 55ed793afb4a8025d33a8e6a5f2f89d5ac4d8432)!" Yes, we can work on building some scripts for this. > > - Arnaldo Alessio