Messages in this thread |  | | From | "Ulrich Windl" <> | Date | Fri, 7 Feb 1997 09:05:17 +0100 | Subject | real-time processing |
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Hello,
I have some questions about real-time processing in Lunux. I just started to gain some experience in 2.0.28...
First is there a way to recognize a real-time process with some utility. Both, top and ps seem to be unable to do that. In contrast, in HP-UX real-time processes have a negative "PRI" value in "ps -l". I guess it would be useful to recognize such processes as well.
Also, is it possible to have the total of locked memory displayed in top, or is it too expensive to sum all the values.
As far as I know there's also an influence of the buffer cache parameters on scheduling delays: If you have a lot of RAM and thus huge caches, flushing the cache can take some CPU and I/O bandwidth. How should the parameters for the buffer cache be tuned? Have rather small chunks to be flushed, or have low load factors? Maybe my problem is that I don't know the relationship between these parameters.
I'm not subscribed to the kernel list.
Ulrich
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