Date: Wed, 14 Apr 2004 10:45:15 -0700 From: Tim Kientzle <tim@kientzle.com> To: Colin Percival <colin.percival@wadham.ox.ac.uk> Cc: current@freebsd.org Subject: Re: Optimizing RCng execution speed ? Message-ID: <407D78AB.1000700@kientzle.com> In-Reply-To: <6.0.1.1.1.20040414065121.039cde20@imap.sfu.ca> References: <11095.1081621779@critter.freebsd.dk> <407B1EBC.6050405@freebsd.org> <407B234D.7070209@kientzle.com> <20040413160331.GM6308@numachi.com> <20040413200013.GC53327@cirb503493.alcatel.com.au> <6.0.1.1.1.20040414065121.039cde20@imap.sfu.ca>
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Colin Percival wrote:
> Out of the total 4.88 seconds the major consumers are:
>
> syslogd 0.89 s
> mountcritlocal 0.70 s
> fsck 0.53 s
> sshd 0.29 s
> initrandom 0.24 s
>
> Also note that the 35 conecutive scripts {savecore ... LOGIN} which
> do nothing take under 0.01 seconds each
Two questions come to mind:
1) If you delete those 35 do-nothing scripts,
what does that do to the boot time?
(I've often wondered whether it was worth
putting smarts into rcorder to simply
skip do-nothing scripts.)
2) What is syslogd doing for 0.89 seconds?
I understand why mountcritlocal and fsck might
take a while, but syslogd doesn't strike me
as an obvious slow point. (Unless it's waiting
on a DNS lookup? Can that be avoided with
appropriate /etc/hosts entries?)
Tim
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