[Tinyos-devel] FTSP testing result

[Matt Welsh]

Can you try on Motelab?

On Feb 3, 2009, at 2:18 AM, Omprakash Gnawali wrote:

> I ran FTSP for a few hours on Tutornet and the result is not good. The
> nodes go out-of-sync frequently enough to make the system unusable.
>
> Setup: I updated my tos directory from CVS head earlier today. I
> changed tests/TestFtsp to log FTSP time every 10s. 56 nodes total.
> "PFLAGS += -DTIMESYNC_RATE=30" added to the Makefile.
>
> Here are some results:
> http://enl.usc.edu/~om_p/net2/ftsp/
>
> Every 10s, for each node, I plot a point on the first graph if the
> getGlobalTime() returns a FAIL indicating unavailability of global
> time. If there are no dots on the graph, it would mean the nodes have
> a valid global time at all times.
>
> With Trickle timer, the results are worse, but maybe we should fix the
> periodic case before we get to Trickle. Turns out the
> consistency/PULL-bit is more complex than I had thought but it should
> be doable.
>
> - om_p
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