[CentOS] Limit RAM used by a perl script

[Paul Bijnens]

On 07/20/2009 05:28 PM, Sean Carolan wrote:
> I have a perl script which runs from a cron job.  How would you limit
> the amount of RAM that this script is allowed to consume?  Is there a
> ulimit setting that will accomplish this?  If so does ulimit have to
> be run each time the script is run, or is there a way to set it
> permanently?

First, install the perl module BSD::Resource

   yum install perl-BSD-Resource

Then use it in your program like:

   #!/usr/bin/perl

   use BSD::Resource;
   setrlimit(RLIMIT_VMEM, 1_000_000, 1_000_000);

   # rest of the program that is limited to 1MByte now

-- 
Paul