perfSONAR User Q&A and Other Discussion

[Steven Wallace <>]

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