Kubuntu Dapper live CD optimization

Tools

Bootchart
Squashfs module instrumented by me to dump information about page reads
Script to remaster live CD in various ways (version 1.0.1 - contains cutomization directory for optimizing plain CD, use directory ./customize-dir-examples/sort-by-first-access/)
Script to cut file names from squashfs trace
Script to sort files by first access

Build image squashfs_trace using script for remastering live CDs: ./scripts/remaster-live-cd.sh kubuntu.iso ./customize-dir-examples/squashfs_trace/
Run this CD. After boot open apps which are most commonly used (for example: look through menus, open home directory and a browser).
Copy file /dev/.squash.log to file squashfs.log. Then copy it to your workstation (using for example scp).
Cut file names from log using first script, save it to files.list.
Sort files by first access using second script - save it as rootfs.sort in customization directory.

Base Kubuntu live CD version: RC1
ISO image with bootchart (torrent)
ISO image with changed layout and with bootchart (torrent)

Files:

Trace of file accesses (boot, opening Konqueror, looking through menus, opening home folder)
Squashfs sort file (for use with -sort option of mksquashfs)

Bootcharts:

Desktop - Athlon 1.2 Ghz, 256 MB RAM: Kubuntu with bootchart (1:52s, 1:53s), optimized CD with bootchart (1:30s, 1:33s)
Laptop - Celeron 2.4 Ghz, 240 MB RAM: Kubuntu with bootchart (2:08s, 2:07s), optimized CD with bootchart (1:52s, 1:52s)

Manually measured time until desktop (strictly speaking Kicker) appears:

Desktop - Athlon 1.2 Ghz, 256 MB RAM: Kubuntu with bootchart (3:44, 3:54), optimized CD with bootchart (2:47, 2:47), plain Kubuntu (3:22, 3:25), plain optimized CD (2:22, 2:22)

Results are worse for about 10 seconds.
Bootcharts:

Desktop - Athlon 1.2 Ghz, 256 MB RAM: Kubuntu with bootchart (1:52s, 1:53s), optimized CD with bootchart (1:40s, 1:40s)