[juneau-lug] Re: Web100 servers

  • From: Kevin Miller <millerboys@xxxxxxxxxxxxx>
  • To: juneau-lug@xxxxxxxxxxxxx
  • Date: Sun, 24 Sep 2006 20:46:24 -0800

James Zuelow wrote:
> I've always used sites like dslreports.com for speed tests.
> 
> I ran across these Web100 servers, which provide a lot more information about 
> tuning your connection.  If you have a 1.5Mb/sec cable modem and you're not 
> seeing the performance you expect, trying these out might shed some light on 
> the problem.
> 
> Information on Web100 in general is here:
> http://www.web100.org/
> 
> And the specific tool used in the tests is NDP, available here:
> (info)
> http://e2epi.internet2.edu/ndt/
> (download)
> http://e2epi.internet2.edu/ndt/download.html
> 
> Anyway, if you're curious, some of the NDT sites are listed below.  There are 
> more available on the e2epi site above, but I couldn't connect to them 
> (internet 2 thing probably).
> 
> Once you run the test, click on statistics or more details to get more 
> detailed information than you'll get from the free dslreports.com test.  
> 
> You need Java to run the applets.  All of the pages will automatically 
> attempt 
> to load the java applet, so expect a Firefox warning if you click on them.
> 
> Argonne National Laboratory (always tells me I have a duplex mismatch):
> http://miranda.ctd.anl.gov:7123/
> 
> University of California SC (best results for me, shortest path):
> http://nitro.ucsc.edu/
> 
> Stanford (here because of it's physical proximity to Alaska - appears to be 
> missing the "start" button though.)
> http://netspeed.stanford.edu/
> 
> University of Michigan:
> http://speedtest.umflint.edu/

Interesting.  I ran it at Santa Cruz and it said I need to increase my
receive buffers (currently 128 Kb).  Searching around I noted that
recent kernels (2.6.6+, mines 2.6.13+) should auto tune the buffer size.
 Apparently it isn't.  So how do I increase the receive buffers to
somewhere around 640 Kb?

...Kevin
-- 
Kevin Miller
http://www.alaska.net/~atftb
Juneau, Alaska
Registered Linux User No: 307357
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