Re: [Contiki-developers] network performance

[Melanie S. <sch...@gm...>]

Hello Adam!

I added the line and uploaded the code.
My question is: if i do : make login MOTE=1 or 2 where do I get the node ID
from? there is just a number: connecting to /dev/ttyS0 (115200) but this is
same for both nodes.

I thought to get it with make TARGET=sky sky-motelist, there i get a unique
number with Reference: XBR80ZOB

Thanks
Melanie

2009/11/3 Adam Dunkels <ad...@si...>

> There is a shell command called sendtest that can be used. You should be
> able to do something like this:
>
> Edit the file examples/sky-shell/sky-shell.c
>
> Add the line
>
> shell_sendtest_init();
>
> among the other *_init(); calls. You will probably need to comment out
> some of the other _init()s to make the whole thing fit into memory (e.g.
> remove shell_sky_init()).
>
> Connect two motes to your pc, then upload the code as usual:
>
> make sky-shell.upload
>
> Login to one of them:
>
> make login MOTE=1
>
> then do:
>
> sendtest x.y 1000 100
>
> where x.y is the node ID of the other one (obtain with 'make login
> MOTE=2' and press return).
>
> Fiddle with the sendtest parameters to get different results. Note that
> the throughput data you get are when the data is sent over the default
> power-saving MAC protocol X-MAC and are therefore unexpectedly low. I
> just added a printout to the sendtest command that prints out the radio
> duty cycle too, to highlight this tradeoff, so update the CVS before you
> go this.
>
> To try the different power-saving MAC options, do this:
>
> make clean
> make DEFINES=MAC_DRIVER=lpp_driver sky-shell.upload
> echo "sendtest x.y 1000 100" | make login MOTE=1
>
> make clean
> make DEFINES=MAC_DRIVER=nullmac_driver sky-shell.upload
> echo "sendtest x.y 1000 100" | make login MOTE=1
>
> and you should see quite a bit of difference in throughput as well as in
> the radio duty cycle with the different MAC protocols.
>
> /adam
>
> Melanie Schranz wrote:
> > Hello everybody!
> >
> > I just want to measure the network performance of a network consisting
> > of 2 Tmote Sky motes.
> > What can I use?
> > It is urgent!!
> >
> > Thanks in advance
> > Melanie
> >
> >
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> Adam Dunkels <ad...@si...>, +46707731614
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