Udpcast April 2013

udpcast@udpcast.linux.lu

3 participants
3 discussions

User feedback with low-end cpu
by Erwan Velu 23 Apr '13

23 Apr '13

I'm using udpcast everyday on a large scale setup (between 100 and 500 per install) while counting more than 3000 devices using it at the total. Udpcast runs on an Intel ATOM E600 that features a very weak pch_gbe network driver (linux 3.2 series + Preempt-RT). I'm trying to be as fast and as reliable as possible in a one-way setup. We do have some post-processing on the output stream also to insure coherency & performance (required by our use case). Streaming at 220Mbps with an 8X8 FEC leads to a very high cpu usage & system load. The only way to get it stable is at least to change it priority by using "schedtool -R -p 10 udcpast". Since I'm running this setup I'm loosing very few packet. Maybe this approach could help some while debugging udpcast on low-end cpus. Cheers, Erwan

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Comments about my patch
by Erwan Velu 23 Apr '13

23 Apr '13

Hi Alain, I've been sending an email in november about I bug I had on my setup. http://www.udpcast.linux.lu/pipermail/udpcast/2012-November/001194.html Since I'm running this commit I never had the problem again (while it was present at every run before). I never got any formal feedback about it to see if it's the proper way to solve it. I really would like some comments on it. Cheers, Erwan

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UDPCast for Windows - Source Code
by Veluru, Aruna 23 Apr '13

23 Apr '13

Hi All, Our application provides download solution to devices connected to network. Currently its point to point download, so when the download is scheduled concurrently for more devices IIS gets blocked and file download gets failed due to which hardware requirement of our product increases. When we started looking for multicast solution we found that UDP cast tool providing faster download of 1GB file. But we couldn't find windows version source code. May I know the process to get source code of UDP cast for windows version? Much appreciated your help. Thanks and Regards, Aruna Veluru

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Udpcast April 2013