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#1 2008-11-01 03:13:06

lf
Member
Registered: 2008-05-01
Posts: 17

Bootcharts - what do they mean?

I'm trying to improve boot time on my laptop, so I messed around with /etc/rc.sysinit. I don't know if I did something bad, 'cause I don't really know how certain orders of udev things would affect things. I made a backup.

First boot of the day, made when I woke up this morning:
http://i34.tinypic.com/2uij1ck.png (1)

I moved /sbin/udevadm trigger to just after /sbin/udevd --daemon, as recommended by alfrenovsky on http://kmandla.wordpress.com/2007/03/03 … devsettle/ (see comments) :
http://i33.tinypic.com/16h9g0m.png (2)

I decided to pass ro to my GRUB kernel parameters and comment out the line that says "Mounting Root Read-only" and the mount.
http://i34.tinypic.com/2v1x26e.png (3)

I think the only thing I did here was delete some other non-vital lines and change bootlogd to stop logging when X is run:
http://i37.tinypic.com/ilde28.png (4)

Questions:
What is that seemingly random modprobe near the bottom of (3)?
Why does it show that it's running firmware.sh in (3) but not any of the others?
Why does hwclock run after modprobe in (3) and (4)?
Why does hwclock run twice in (4)?
Does it just show some things sometimes but not other times because they started running for long enough to show up on the bootchart (if yes, this would answer most of my questions above)?
Would anything bad happen because of what I did to rc.sysinit?

Thanks for your time,
lf

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