[Debian-eeepc-devel] 5 second boot

[Tomaž Šolc]

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Hi

My Eee 701 takes:

* 8 seconds to GRUB
* 24 more seconds to GDM login prompt.

Apart from removing unnecessary services I got most gain by enabling
concurrent boot scripts and compiling a custom kernel without initrd.

I also disabled network device hotplug support because the script takes
several seconds on boot waiting for loopback device to come up.

Bootchart and some details:

http://www.tablix.org/~avian/blog/archives/2008/10/09/T20_15_52

Basically it's the kernel initialization and udev module loading that's
holding things back (I'm using 2.6.23). Those long modprobes are ACPI
and bluetooth modules. OTOH I'm a bit skeptical of the bootchartd
results because when I replace modprobe with a wrapper that logs
modprobe's runtime, it reports much shorter runtimes than bootchartd.

Best regards
Tomaž
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