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Full Discussion: High cpu usage
Top Forums Shell Programming and Scripting High cpu usage Post 302945770 by RudiC on Tuesday 2nd of June 2015 02:27:58 PM
Old 06-02-2015
I don't think the script causes CPU utilization to increase but one of the commands in there. If you know which one it is, you can ponder if it's really needed and worthwhile, and if it needs to run that frequently. Raising nice value helps sometimes, but I don't know if it does in cron jobs.

If nothing helps, and the server's and/or users' normal work is impeded inacceptably, you'll need to analyse the bottleneck in the command and eventually rewrite it.
 

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atq(1)							      General Commands Manual							    atq(1)

NAME
atq - Prints the queue of jobs waiting to be run SYNOPSIS
atq [-c | -n] [-q queuename] [user...] The atq command prints the queue of jobs waiting to be run at a later date. These jobs were created with the at command. OPTIONS
Sorts the queue by the time that the at command was issued. Prints only the number of files currently in the queue. Specifies the queue you want to use. DESCRIPTION
With no options, the queue is sorted in the order that the jobs are to be executed. When a privileged user invokes the atq command without specifying a username, the entire queue is displayed; if a username is specified, only those jobs belonging to the specified user are displayed. EXAMPLES
In order to look at the queue created by the at command, enter: atq If there are jobs in the queue, a message similar to the following is displayed: root.62169200.a Tue Sep 12 11:00:00 1990 The extension specifies an at job. FILES
Main cron directory. List of allowed users. List of denied users. Spool area. Queue description file for at, batch, and cron. SEE ALSO
Commands: at(1), atrm(1), cron(8) Files: queuedefs(4) atq(1)
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