perfSONAR User Q&A and Other Discussion

["Dale W. Carder" <>]

A beaglebone black with something like a LEA-6T would be interesting to try.


Dale

Thus spake Steven Wallace 
()
 on Thu, Sep 08, 2016 at 04:48:45PM -0400:
> thanks Ian.
> 
> Any comments about the beaglebone? Anyone using a DS3231-based clock?
> 
> ssw
> 
> 
> > On Sep 8, 2016, at 2:27 PM, Ian Bobbitt 
> > <>
> >  wrote:
> > 
> > On 9/8/16 11:51 AM, Steven Wallace wrote:
> >> I realize that underpowered ARM-based platforms aren't support, but I 
> >> wonder if anyone has experience running OWAMP on a Raspberry Pi 3 or 
> >> similar.
> >> 
> >> 
> >> if so, can you share some details such as OS, clock source, experience, 
> >> etc.
> >> 
> >> thanks,
> >> 
> >> steve wallace
> >> 
> > 
> > Steve,
> > 
> > A Raspberry Pi 3 should work fine for OWAMP if you only want to show 
> > loss, but probably not appropriate to show jitter.
> > The Pi 3 has two means of network connectivity.
> > 
> > 1) On-board WiFi. Pretty well known to have poor jitter performance, 
> > especially under load or in a noisy environment. It
> > only supports 2.4GHz, which is pretty crowded everywhere. Loss is also 
> > pretty much a given on WiFi.
> > 
> > 2) On-board USB Ethernet. USB also has poor jitter performance. This is 
> > compounded by it being shared (via on-chip hub)
> > with the external USB ports.
> > 
> > Ian Bobbitt
>