[Tinyos-devel] FTSP testing result

Branislav Kusy kusy at stanford.edu
Wed Feb 4 11:05:40 PST 2009


i'm waiting for a green flag from cc2420 owners...
b.

Omprakash Gnawali wrote:
> I can certainly try Motelab but waiting for the fixes to be patched in...
> 
> - om_p
> 
> On Tue, Feb 3, 2009 at 5:23 PM, Matt Welsh <mdw at eecs.harvard.edu> wrote:
>> 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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>>> Tinyos-devel at millennium.berkeley.edu
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>>
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