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recursive nice value

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# 1  
Old 07-18-2007
recursive nice value
Hi all,

I have a running process that will spawn a large number of perl processes. How can I set that these all get spawned with a low priority nice value? I don't mind if all perl related processes take this level.


Note, the executing script is compiled and can not be altered at a code level.


Many thanks,

Neil
# 2  
Old 07-18-2007
From the man page for nice:

By default, background jobs run by the Bourne and Korn shells are
assigned a nice value four greater than that of the parent shell.
The ksh(C) option +o bgnice disables this behavior, causing
background processes to run with the same nice value as the
parent shell.

So this begs the question, if you are only using two different nice levels (20 , the default and 24, for background) is the distribution of system resources different than if you had used 20 and 39?
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