perfSONAR User Q&A and Other Discussion

[Roshan <>]

Hi Mark,

We got few devices (10-20 small boxes) of Intel i686 arch with CPU~1600 
MHz , 2-4 GB of RAM , 50-100 GB of Storage and NIC 100 Mb/s FD. I am 
trying to set up few PS-measurement points having the idea of 
characterizing the network traffic.

~Roshan


On 08/12/15 16:42, Mark Feit wrote:
> Roshan writes:
>
>
>
> > Is it possible to install perfsonar-toolkit on OpenWrt? I have number of
> > nodes in our testbed in which they run OpenWrt.
> Most of perfSONAR should build and install on OpenWRT, but you may find a 
> couple of things that limit how useful it is:
>
> One is CPU speed.  Devices that run OpenWRT tend to be built around SoCs that 
> run at 200-450 Mhz, which will be adequate for tests that don’t impose a 
> large load.  Those who’ve been experimenting with small nodes have observed 
> that even the faster ones (like the Raspberry Pi at 700 Mhz) are unable to 
> saturate a GbE port with outbound data or deal with that much inbound.
>
> The other is memory, which isn’t usually plentiful.  Most of the devices I’ve 
> ever looked at have tens of megabytes of RAM.  That may be enough to run the 
> BWCTL daemon and a test or two, but running the entire toolkit in that kind 
> of space would be a stretch.
>
> If you’ve got high-spec devices running OpenWRT, please let us know what they 
> are.  We’re always interested in new inexpensive systems.
>
> —Mark