Re: [Announce]: Test results with latest CCID3 patch set

[Alessio Botta <a.botta@unina.it>]

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