Messages in this thread |  | | Date | 31 Jul 96 07:59:23 EDT | From | Mike Robinson <> | Subject | Re: posix realtime - how to use (was posix 4 extensions) |
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Hi again.
Well, we've looked at what is available for real time scheduling, and we've started to play around with it. We're looking at fiddling the task structure parameters while inside a device driver, to set the calling tasks scheduling policy and priority, and we're still trying to figure out how to selectively force a re-scheduling so the real time tasks run when we exit from an interrupt service routine in the device driver. Our current efforts aren't working too well. In particular, we seem to be taking a big performance hit and we seem to be missing interrupts, tho' at this stage we can't tell for sure just what is happening. Though we do have embedded systems real time experience, we don't have a lot of experience with doing this sort of thing with Linux.
The question is, Does anyone? Do you know of anyone, or is there anyone out there who has used real time scheduling with Linux? We'd really like to hear from anyone who has used this seriously (or even playfully). Likewise, if anyone has got any utilities/samples/guidelines/doco related to Linux realtime, please drop us a line.
Meanwhile, while we're waiting to hear from everyone, we'll keep exper meNtin g gg....
Mike
PS Stephen >> There was a BOF session at the Berlin LinuxKongress where real time linux was >>discussed, btw. Is this discussion on the net somewhere? Where would I find it?
MR
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