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Suspending running processes

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Suspending running processes UNIX Help forum discussing the Unix Operating System and all variants including Irix, Solarix, and AIX. Unix was designed as a true multi-user operating system.

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  #1  
Old March 2nd, 2004, 02:26 AM
jimmo jimmo is offline
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Suspending running processes
Hi All!

someone recently asked me if there was any way to suspend a running process that was started by someone else. Job control with specific shells came to mind, but as far as I know that does not work for processes in other process groups.

The real question had to do with processes that were taking up too much CPU time, so I suggested the renice command. However, I am still wondering if someone knows of a way of suspending a running process that someone else started (obviously the would only work as root)

Any help is greatly appreaciated.

Regards,

jimmo
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Old March 2nd, 2004, 02:05 PM
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munkfish munkfish is offline
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How about sending a STOP signal to the process?
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Old March 5th, 2004, 05:25 PM
Jalalov Jalalov is offline
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Hi Jimmo,

Try this:

% top

check which processes and taking so much CPU ressources and then kill this one with:

% kill PID (Soft kill)

or :

% kill -9 PID (Hard kill)

Jalalov.
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Old March 6th, 2004, 12:33 AM
Perderabo Perderabo is offline
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Ack! He didn't want to kill the process, just suspend it. Munkfish had it right. Send a SIGSTOP to the process and it will suspend execution. And later send a SIGCONT to the process and it will resume execution.
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