Re: [riot-devel] Benchmarks

2015-03-19 Thread Oleg Hahm
Hi Simon! > Yes I tried to compile the rpl_udp example for the samr21-xpro but it did > not have enough RAM. Even with RPL in non-storing mode and a very small > routing table it would not fit. Well, in non-storing you basically don't need any routing table (except for the root node), but still i

Re: [riot-devel] Benchmarks

2015-03-19 Thread Simon Vincent
Yes I tried to compile the rpl_udp example for the samr21-xpro but it did not have enough RAM. Even with RPL in non-storing mode and a very small routing table it would not fit. Ultimately we would be looking to run UDP/RPL/COAP on top of the IPv6/6lowpan/802.15.4 stack. For the evaluation j

Re: [riot-devel] Benchmarks

2015-03-18 Thread Oleg Hahm
Hi Ludwig! > 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. I haven't followed the discussion about RPL and UDP on the SAMR21 lately, but doesn't these memory problems only exist when using with RPL

Re: [riot-devel] Benchmarks

2015-03-17 Thread Ludwig Ortmann
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,

Re: [riot-devel] Benchmarks

2015-03-17 Thread Simon Vincent
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

Re: [riot-devel] Benchmarks

2015-03-17 Thread Craig Younkins
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 wi

[riot-devel] Benchmarks

2015-03-17 Thread Simon Vincent
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 ___