[riot-devel] Benchmarks

Ludwig Ortmann ludwig.ortmann at fu-berlin.de
Wed Mar 18 07:51:33 CET 2015


Hi,

I think our only m0+/802.15.4 board is the samr21-xpro and there are problems with the current/old network stack because of its memory demands.
That said: which  protocol on top of IP are you interested in?
I assume you want to ignore RPL and any other side-tasks for this evaluation?

Cheers,
Ludwig

Am 17. März 2015 17:46:52 MEZ, schrieb Simon Vincent <simon.vincent at xsilon.com>:
>Hi Craig,
>
>We have a 802.15.4 transceiver that is capable of 250kbps. We are 
>thinking of using this with a Cortex M0+ but wanted to make sure that 
>the M0+ would have the processing power to handle the 
>802.15.4/6lowpan/ipv6 stack at a datarate of 250kbps.
>
>I just wondered if anyone had done any datarate measurements on
>existing 
>development boards using the Cortex M0+?
>
>- Simon
>
>On 17/03/15 16:20, Craig Younkins wrote:
>> Hi Simon,
>>
>> Throughput will be highly dependent upon the RF environment and what 
>> transceiver you are using. The M0+ most likely has enough power to do
>
>> it under ideal conditions, but retransmissions due to collisions will
>
>> limit the effective bandwidth.
>>
>> You can use 900 mhz and 2.4 ghz transceivers with 15.4. ~900 is 
>> significantly less crowded but lower theoretical bandwidth. The Atmel
>
>> 212B is 900 Mhz and specs 1000 kbps as the max air data rate.
>>
>> Which transceiver are you using?
>>
>> Craig Younkins
>>
>> On Tue, Mar 17, 2015 at 11:42 AM, Simon Vincent 
>> <simon.vincent at xsilon.com <mailto:simon.vincent at xsilon.com>> wrote:
>>
>>     Has anyone done any performance tests to see what throughput can
>>     be achieved using RIOT?
>>
>>     I would be interested to know if the Cortex M0+ is powerful
>enough
>>     to sustain 250Kb/s TCP over 6lowpan/802.15.4.
>>
>>     Does RIOT have any mechanism to measure CPU usage?
>>
>>     - Simon
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>>
>>
>>
>>
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>
>
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