Nice or niceness refers to the priority of a running process; i.e. how much CPU time it can receive when required. Niceness ranges from -20 (the highest priority) to 20 (the lowest priority).

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Allow users to set higher (lower?) nice levels

I want to allow users to set a nicelevel lower than 0 (and any nice level really) in my system. I'm testing by logging in again as a user of the affected user group after I set the change and trying: ...
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60 views

How to prevent my system from becoming unresponsive when thrashing (out of RAM)?

I have 8GB of RAM, but sometimes I'm running a couple VMs and enough Chrome processes to use up most of my memory. That's usually fine, but sometimes my system starts thrashing, and it's difficult ...
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13 views

PID created with system()

i'm new in ubuntu. I'm creating a programm with opens 2/4/8 new process in separate terminals. Using system(). How can i get PID of them, or change nice value, using another terminal?
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43 views

why can user increase nice of process but decrease requires root?

I pulled up top and a program was using ~80-90% CPU. I increased the niceness, to see if I could reduce the load. Then I tried to reduce the nice of the same process back to it's initial level and was ...
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53 views

Nautilus slow if lot of images are in a directory

I have 400 images in a directory. I look at the directory with nautilus. The first time I open the directory it is very slow, I have a modern laptop with 4 cores and plenty RAM. My use case: open ...
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1answer
142 views

How do I provide arguments to a command run from gksudo?

I want to add a shortcut for gnome-system-monitor that runs with root access and has very high priority. My command for the shortcut is: gksudo -k -u root nice --20 gnome-system-monitor But this ...
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1answer
32 views

Which niceness to give to prevent freezing?

If I wanted to give my main system, desktop cinnamon, the highest priority, which PID should I set this for? The reason is because I have a program that runs for days and would hog up all the ...
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2answers
203 views

How to perform a CPU/disk intensive operation without drastically affecting other processes?

I am running a server on Ubuntu 12.04. The operation I'm trying to perform is a git clone, as part of a new backup system I'm implementing. The source and destination are both local, so there is no ...
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How to check my niceness?

Is there any way to check my nice lvl? I did try with ps, but for some reason the output does not show the column NI which is meant to show the lvl priority if I'm not wrong. ps -fl -c F S UID ...
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1k views

How to prevent a process from being killed?

Is there anyway to prevent a process from being killed no matter what? I know about nice but I'm not sure if giving a task such as a long running memory-intensive rake task the highest priority will ...
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2answers
4k views

How to increase the priority for a task permanently in linux machine?

How to increase the priority for a task in linux machine? What I've Done So Far: After small research i found that we can increase the priority to a task using NICE command and if we want to increase ...
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1answer
681 views

Cant change niceness even after editing limits.conf

so what i did: in the terminal i typed: sudo su (used pass) then typed: nano /etc/security/limits.conf went to bottom and added: USER - nice -20 (with my ...
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Nice command without root privileges

I need to run dosemu with nice --20 from script. Problem is: a negative value can be applied only with sudo. Do you know any way to run nice command without sudo or simply run nice --20 dosemu from ...
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1answer
2k views

How do priorities work on ubuntu's 12.04 system monitor?

I noticed in my system monitor app, on the "Processes" tab, that one can change the 'priority' of a certain program. What specifically would this do? (I'm new)
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1answer
475 views

How to make an app start with a lower 'nice' value

I would like to know how to make a program (Eclipse) always start with a lower 'nice' value. I tried to manipulate ‘/usr/share/applications/eclipse.desktop’ - with no success. Exec='nice -n -10 ...
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Is there a way to 'sleep' browser windows with tabs I'm not currently reading? [duplicate]

Possible Duplicate: Is there an equivalent of “stay” for Ubuntu? I typically have a lot of PDF's open while I'm computing. Many of them are "I'll read this later" rather than "I ...
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1answer
2k views

Why the process priority of Pulseaudio is -11?

Why it so low? Sometime when cpu is high load sound through Pulseaudio becomes choppy. I think this happens because process priority of Pulseaudio has so low value. So why it so low by default if it ...
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4answers
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Change niceness (priority) of a running process

Is it possible to set a new nice level of a running process with a known id? Does this operation require root access, or just being the owner of the process?