[Fedora-livecd-list] Performance

[Glen Eustace]

I have been having fun customising my kiosk CD.  I may have gone about
things the wrong way but I am making progress.

For most stuff I added a script to post_install_scripts
/usr/share/kadischi/post_install_scripts/99MyStuff.sh

I got a little caught out by some of the other scripts, 05fsclean.py for
example deletes everything from /root, when I had already put files into
using an RPM.

The resulting CD is nearly doing everything I want it to.

It may be worthwhile thinking about how to improve the performance by
coping more stuff into the RAM Disk. In my case there is a trade off
between the initial boot speed and the speed of the application. If it
takes too long to boot because of the copies, the users will get
annoyed.  It seems somehow better to have things actually happening on
the screen even though they are a little sluggish to start with.

NB: The kernel does a great job of making things faster by using the
free ram for caching.  This again may need some experimentation, maybe
by making the ram disk smaller the kernel can cache more and the overall
performance may be better.

PS: I am using VMWare for prototyping the CD and would highly recommend
it. As soon as the iso image has been written I can boot it in a virtual
machine.
-- 
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Glen and Rosanne Eustace,
GodZone Internet Services, a division of AGRE Enterprises Ltd.,
P.O. Box 8020, Palmerston North, New Zealand 5301
Ph/Fax: +64 6 357 8168, Mob: +64 27 5 424 015, Web: www.godzone.net.nz

"A Ministry specialising in providing low-cost professional Internet
Services to NZ Christian Churches, Ministries and Organisations"