Subject: Re: [linux-audio-user] regarding services and cron jobs
From: John Check (j4strngs_AT_bitless.net)
Date: Tue Sep 07 2004 - 18:38:31 EEST
On Tuesday 07 September 2004 11:00 am, Dave Phillips wrote:
> Hi Steve:
>
> Thanks, that's exactly what I needed to know. I'm also putting
> together a troubleshooting guide for Linux audio users, and that's the
> kind of stuff I need for that work too.
>
> Here's from the chkconfig report:
>
> [dlphilp_AT_localhost dlphilp]$ chkconfig --list | grep 5:on
> kudzu 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> syslog 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> netfs 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> network 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> random 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> rawdevices 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> pcmcia 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> keytable 0:off 1:on 2:on 3:on 4:on 5:on 6:off
> apmd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> atd 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> gpm 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> autofs 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> isdn 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> sshd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> portmap 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> nfslock 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> sendmail 0:off 1:off 2:on 3:off 4:on 5:on 6:off
> rhnsd 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> crond 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> anacron 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> xfs 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> xinetd 0:off 1:off 2:off 3:on 4:on 5:on 6:off
> cups 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> canna 0:off 1:off 2:on 3:off 4:on 5:on 6:off
> alsasound 0:off 1:off 2:on 3:on 4:on 5:on 6:off
> MidiShare 0:off 1:off 2:on 3:on 4:on 5:on 6:off
>
>
> While some of this report is cryptic to me, I wonder about some things
> like the apmd, isdn, pcmcia, portmap, and sendmail entries. Am I correct
> to assume I can do without them at any time, i.e., not only during
> recording ?
>
apmd is power management, so turning that off is good, but you can kill that
in you kernel too
isdn - unless you have ISDN hardware it's not doing anything
pcmcia - if it ain't a laptop buh-bye, but if it ain't a laptop you don't have
it.
portmap - only used by NFS, no NFS mounts, you don't need
sendmail - augh, depends on what mode it runs, but if you kill it you won't
get any reports
So, first 3 can be stripped from the kernel, then you don't have to worry even
though they're hardware dependant. Latter 2 can be turned off, but if
sendmail isn't running in daemon mode it's not hurting anything.
BTW - the implementation report dealie is coming along. Should be ready "Real
Soon Now"
> Best regards,
>
> dp
>
> Steve Harris wrote:
> >On Tue, Sep 07, 2004 at 10:39:14AM -0400, Dave Phillips wrote:
> >> I've tacked on a copy of top's report for a plain-vanilla Planet CCRMA
> >>RH 9. I'm going to be advising a client regarding what services he
> >>can/should disable for best-case recording (with a nearly identical
> >>system), so I thought I'd use my own system for the primary tests. I'd
> >>like to know which of the services and jobs listed by top can be safely
> >>disabled during the use of a setup consisting of Jack, Rosegarden, and
> >>Hydrogen, all in the latest & greatest versions from Planet C. Any and
> >>all suggestions will be cosmically appreciated.
> >
> >Not all services show up in top, some are only run when they are
> >triggered. You can get a more accurate list with
> >chkconfig --list | grep 5:on
> >and looking in /etc/cron.*/
> >
> >- Steve
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