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The Friday 2007-12-14 at 13:55 -0600, K.R. Foley wrote:
First, it is not renice what you are looking at, but ionice - from the
manual:
Actually there is a renice program that sets the nice value of a program
within the SCHED_OTHER scheduling policy / priority 0. You do have to be
root though to decrease (increase priority) the nice value of a process,
as it should be.
The program "renice" just does about the same as the program "nice", but
using the PID. It just modifies the scheduling priority, but you can not
change the scheduling class of a program using renice. They are different.
But! Some programs try to detect at start if they have realtime
priorities... if they are given them later by the method described, it
is already to late for them, they will not use the alternative
algorithms designed for that case. I believe Xine does this.
So, yes, a method to give a group of programs realtime priority from the
start would be interesting.
There is but it typically requires superuser privileges.
Ie, there is no method.
- --
Cheers,
Carlos E. R.
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