Solved

Performance of jobs run from cron

Posted on 2004-03-26
4
358 Views
Last Modified: 2013-12-27
I have some long-running scheduled jobs run from cron. I find that if I run exactly the same job form the command line using nohup, I get soemthing like 20 - 25 % performance improvement. Why is the same job slower when runnign from cron, and how can I make cron as fast as nohup from the command line?
0
Comment
Question by:duncan_deborde
4 Comments
 
LVL 12

Expert Comment

by:stefan73
ID: 10687934
Hi duncan_deborde,
Do you have the job scheduled so that several jobs are running in parallel?

Cheers,

Stefan
0
 

Author Comment

by:duncan_deborde
ID: 10688505
I am only running one job at a time, either from cron or the command line.

Duncan
0
 
LVL 1

Accepted Solution

by:
mdhmi earned 500 total points
ID: 10689714

You can adjust the priority of cron jobs by tweaking the 'nice' value in /etc/cron.d/queuedefs.  'man queuedefs' for an example.

Regards,

Mark

0
 
LVL 51

Expert Comment

by:ahoffmann
ID: 10696615
or prepend the job by nice command in your crontab, see
  man nice
0

Featured Post

Active Directory Webinar

We all know we need to protect and secure our privileges, but where to start? Join Experts Exchange and ManageEngine on Tuesday, April 11, 2017 10:00 AM PDT to learn how to track and secure privileged users in Active Directory.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Java performance on Solaris - Managing CPUs There are various resource controls in operating system which directly/indirectly influence the performance of application. one of the most important resource controls is "CPU".   In a multithreaded…
Why Shell Scripting? Shell scripting is a powerful method of accessing UNIX systems and it is very flexible. Shell scripts are required when we want to execute a sequence of commands in Unix flavored operating systems. “Shell” is the command line i…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.

830 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question