Good afternoon, By default, the Econotag and izattach (part of the linux-zigbee userspace tools) expects the communications to run at 115200 bps. I wanted to know of it was affecting the performances, so I tried different values (by recompiling the firmware and the tools accordingly). I was mainly interested in reducing latency, this is why I exclusively used ping6 for my tests, but I guess the throughput should improve as well.
Here is the average round-trip time reported by ping6 between two nodes: - at 115200 bps: ~ 400ms - at 921600 bps: ~ 20ms (yes , 20 times faster) - at 1843200 bps (maximum baudrate supported by the econotag): ~ 20 ms (same number as above) As a side note, 1843200 bps is not a "standard" baud rate supported by the Linux kernel, which make it more complex to set on the software side. Given that there is not performance gain compared to 921600 bps, there seem to be no benefit in using this baud rate (but I might be wrong). I do not believe my changes should make it to the kernel (some serial devices might still need to operate at 115200), but I can post my patches if people are interested. Regards, Tony ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Linux-zigbee-devel mailing list Linux-zigbee-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-zigbee-devel
