Nivedita Singhvi <niv@xxxxxxxxxx> writes: > At some stage this might have been a pretty good response time. But > HW improves by leaps and bounds, and what was considered "fast" or > "real-time" 25 years ago might be your average vanilla desktop box > speed of today. I think you are confused. "fast" and "realtime" are quite unrelated. The computers used aboard ancient space craft are abysmally slow compared to today's desktop computers, but certainly operate in realtime. It does not matter whether one system can run circles around the other one as long as any given circle can't be guaranteed to complete in a specified amount of time. Realtime recording systems, for example, can't actually be writing to high performance file systems unless they can work with preallocation. Hard realtime is not reasonably possible for a lot of tasks on a general purpose computing device. But there is often a lot you can do to help it give a better shot at things. -- David Kastrup -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
