Re: Adding nice to an rc.d script

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, Aug 27, 2011 at 10:44:50PM -0700, AGC wrote:
> On 8/27/2011 22:29, Ben Cottrell wrote:
> >On Sat, 27 Aug 2011 19:23:51 -0700, AGC wrote:
> >>I did try to put just -N on the flags but it doesn't work.  I can see in
> >>top that ntpd is not running at higher priority as if the rc_flags were
> >>being ignored entirely.
> >
> >"Nice" is different from "priority". Are you looking at the correct
> >field in top?
> >
> >You can also check nice values with, say, "ps -o nice -p<pid>".
> >
> >The nice value *influences* the priority, but sometimes not as
> >much as you would think :-)
> 
> I am looking at the right field. ;)
> 
> But I can also see that all the options set in rc_flags already
> (before I did any editing) are not showing up in ps.
> 
> For example, I can see several things running with options:
> 
>   115 ?     Ss  0:47.73 /usr/sbin/syslogd -s
>   374 ?     IWs 0:00.06 /usr/sbin/inetd -l
>   377 ?     I   0:25.43 qmgr -l -t unix -u
> 
> However, ntpd isn't:
> 
>  9116 ?     Ss  0:02.50 /susr/sbin/ntpd
> 
> But, rc_flags in an unmodified /etc/rc.d/ntpd says:
> 
> rc_flags="-u ntpd:ntpd -i ${ntpd_chrootdir} $rc_flags"

This line may not be executed, there's some 'return 0' before
in ntpd_precmd().
The correct way to set flags to ntpd is to use the ntpd_flags in /etc/rc.conf.
For example I have:
ntpd_flags="-A"
and ntpd is started with:
rochebonne:/home/bouyer/tmp/src/sys/dev/ic>ps axuww |grep ntpd
root    287  0.0  1.4   5472  5668 ?      Ss   11:45AM  0:00.87 /usr/sbin/ntpd 
-A 


-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--