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Date:      Wed, 21 Mar 2001 07:17:48 -0600
From:      Mike Meyer <mwm@mired.org>
To:        anarcat <anarcat@tao.ca>
Cc:        questions@freebsd.org
Subject:   Re: Can't use nice to lower ports build priority
Message-ID:  <15032.43516.622282.611352@guru.mired.org>
In-Reply-To: <97268406@toto.iv>

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anarcat <anarcat@tao.ca> types:
> --RnlQjJ0d97Da+TV1
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> 
> Hi.
> 
> I am witnessing weird nice behavior here. Note that I'm doing this as
> root.
> 
> Say I start sh with nice:
> 
> shall# nice sh
> 
> it works fine:
> 
> UID   PID  PPID CPU PRI NI   VSZ  RSS WCHAN  STAT  TT       TIME COMMAND
>   0 11250 10712   0  10  4   624  248 wait   SN    p2    0:00.01 sh
> 
> Actually, I wonder why nice is not 10, as nice(1) says..
> 
> But say I want to nice it to even lower priority:
> 
> shall# nice -20 sh
> 
> UID   PID  PPID CPU PRI NI   VSZ  RSS WCHAN  STAT  TT       TIME COMMAND
>   0 11252 10712   0  10 -20   624  260 wait   S<    p2    0:00.01 sh
> 
> Odd. Considering nice(1) says:
> 
> "Negative numbers are expressed as --number."
> 
> What's worse is that:
> 
> shall# nice --20 sh
> nice: Badly formed number.
> shall#
> 
> I don't get it.=20

You're getting the shells builtin nice, not the command documented by
nice(1). The behavior you describe is documented for csh, which is
also root's default shell.

	<mike
--
Mike Meyer <mwm@mired.org>			http://www.mired.org/home/mwm/
Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.

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