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Operating Systems Linux Determining Values for NIce and Priority items in limits.conf file Post 302774523 by matthewfs on Saturday 2nd of March 2013 10:13:10 AM
Old 03-02-2013
Determining Values for NIce and Priority items in limits.conf file

I've been looking online trying to find the correct value nice and priority can take in the limits.conf file. ON the man page it says;
Quote:
Priority - the priority to run user process with (negative values boost priority)
Does this mean priority can be any negative number and any positive?

Then
Quote:
Nice - maximum nice priority allowed to raise to (Linux 2.6.12 or higher) values: [-20, 19]
Does this mean any number between -20 and 19 also what does the definition of nice mean when it mentions Linux 2.6.12 or higher? Does the definition mean you can only set the nice value if you have Linux 2.6.12 or higher?

Sorry if this seems straight forward. I am just a little stuck on these two.

Moderator's Comments:
Mod Comment edit by bakunin: as this has seemingly nothing to do with "Shell Programming and Scripting" i am going to transfer this thread to the Linux forum. You might consider editing in your OS and version so that we can help you more specifically.

Last edited by bakunin; 03-02-2013 at 12:19 PM.. Reason: missing a word
 

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NICE(1) 						    BSD General Commands Manual 						   NICE(1)

NAME
nice -- execute a utility at an altered scheduling priority SYNOPSIS
nice [-n increment] utility [argument ...] DESCRIPTION
The nice utility runs utility at an altered scheduling priority, by incrementing its ``nice'' value by the specified increment, or a default value of 10. The lower the nice value of a process, the higher its scheduling priority. The superuser may specify a negative increment in order to run a utility with a higher scheduling priority. Some shells may provide a builtin nice command which is similar or identical to this utility. Consult the builtin(1) manual page. ENVIRONMENT
The PATH environment variable is used to locate the requested utility if the name contains no '/' characters. EXIT STATUS
If utility is invoked, the exit status of nice is the exit status of utility. An exit status of 126 indicates utility was found, but could not be executed. An exit status of 127 indicates utility could not be found. EXAMPLES
Execute utility 'date' at priority 5 assuming the priority of the shell is 0: nice -n 5 date Execute utility 'date' at priority -19 assuming the priority of the shell is 0 and you are the super-user: nice -n 16 nice -n -35 date COMPATIBILITY
The traditional -increment option has been deprecated but is still supported. SEE ALSO
builtin(1), csh(1), idprio(1), rtprio(1), getpriority(2), setpriority(2), renice(8) STANDARDS
The nice utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A nice utility appeared in Version 4 AT&T UNIX. BSD
February 24, 2011 BSD
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