castanyes blaves

http://www.linuxdevices.com/news/NS6761928882.html

A Linux implementation delivering single-digit microsecond responsiveness on 64-bit dual-core AMD Opteron processors is being demonstrated at the Embedded Systems Conference in Boston this week. From the article: "According to FSMLabs, an AMD Opteron 265 dual-core system running RTLinux can deliver guaranteed interrupt latencies of no more than five microseconds, with scheduling jitter of no more than eight microseconds, even with Linux under a heavy load.

This is important when something is mission critical. For example, a nuclear reaction being controlled. Say, interrupt 666 triggers when something goes horribly wrong, and if you enable a safety system within 10ms, nothing bad happens. It would be good to have a system that guarantees response in less than that time. That's the purpose of a real time OS like RTLinux.

This is not appropriate, necessary, or indeed useful for desktop systems or workstations of any sort, or even servers.

Apparently, this is also important in things like Movie Editing:

http://linuxmovies.movieeditor.com/software/index.html

posted by avilella  # 11:19 AM