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2
votes
1answer
1k views

controlling priority of applications using cgroups

I would like to understand cgroups better and would like to understand the use-cases for applying cgroups. Are cgroups a good way for prioritizing different applications (i.e, giving higher priority ...
10
votes
2answers
794 views

What does a niceness value of (-) mean?

According to the man page, and wikipedia; nice ranges from -20 to 20. Yet when I run the following command, I find some processes have a non numerical value such as (-). See the sixth column from ...
17
votes
3answers
1k views

Why can't I use renice to increase a process' nice value?

From man renice: Users other than the super-user may only alter the priority of processes they own, and can only monotonically increase their ``nice value'' (for security reasons) within the ...