Re: Renice a script
Re: Renice a script
- Subject: Re: Renice a script
- From: christian vick <email@hidden>
- Date: Wed, 03 Apr 2002 17:36:11 +0200
>
Yesterday I tried to renice a script application, with the maximum priority
>
-20, however, there9s no significance speed change.
>
>
The man page of renice stated the nice value 3anything negative (to make
>
things go very fast).2
>
>
Any idea about renice a process? How to gain the speed?
I don't know how it behaves under other flavors of UNIX but renice in OS X
is somewhat, hm, 'limited'? It doesn't make your script faster when the cpu
is idle anyway. But you should see it not dying under heavy cpu load as it
would be the case without renice. So it's more an assurance to get some cpu
time under heavy load but it doesn't speed up things 'just so'.
With positive values it's the same. Set a process to 19 and it will not slow
down when the cpu is idle. It will just be very friendly to other processes
when cpu time is needed by them. Both is very good behavior. But for
negative values i would like it too if it would be more aggressive and the
cpu is more used.
Bottom line: renice settings comes only into the game under medium to heavy
cpu load.
Greetings
cris
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