Re: [Discussion] Multiple testing services on the same server

[Phil Reese <preese@xxxxxxxxxxxx>]

I'd chime in and suggest that merging would be a very good idea.

The NDT server running here has NDT and Iperf (server daemon) running (mostly 
for those command line only folks). As I look at the admin pages for other NDT 
sites, the general run rate is on the order of either a small number or 
30k/month.  That might be a magic max number as that implies roughly 1.4 minutes 
for each test on a 24x7 basis. I'd guess this is primarily a US known service so 
this 30k/mo rate is possibly approaching the max possible, assuming people sleep 
sometime during the day.

Combining all the tests would insure testers were getting the full 
machine/network's resources to test against.  This seems a lot better then 
deploying systems for each test service.

Phil


John Heffner wrote:
> Doug Baggett wrote:
> > Hi!
> >
> > I just restaged my Web100 server with both NDT and NPAD from PSC and 
> > it occurred to me that there might be a possibility of skewed results 
> > if both tests(NDT and NPAD) are being run by users at the same time if 
> > some sort of resource contention happened (CPU or Bandwidth). The 
> > system is GigE connected to about 250mb/s of bandwidth shared between 
> > I2 and the commercial internet. I can’t think of any reason why there 
> > would be a problem...but you never know.
> >
> > Can anybody give me a heads up as to if they have experienced any 
> > difficulties in this sort of situation?
>
>
> In practice this hasn't been in issue (yet), but we've thought about it. 
>  They certainly could affect each other's results.
>
> We talked with Rich a while back about the possibility of merging the 
> two systems under a unified framework for managing tests.  We actually 
> designed the npad server so that this would be as simple as possible. 
> This is something we plan to revisit in the future.
>
> Thanks,
>   -John
>
>
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