Parallel Startup for KDE.

[Stefan Heimers]

I had some rather strange ideas about those matters today, some are 
similar to what others proposed.

1) Make two kde-init-skripts, one loading disk intense tasks, one 
loading cpu intense tasks.

+ This will avoid concurrent disk seeks from different programs,
   while keeping the cpu busy all the time.
- Might not be practical because of dependencies


2) Inside multithreaded programs, try to arrange new threads so they are 
startet right before disk access from other threads. This would fill 
the wait time during disk seek, even if programs are started 
sequentially.

3) Load all config data from a single file in order to make disk cache 
effective and reduce head repositioning. I know a quick&dirty trick: 
Create a small filesystem on a file and mount it through a loopback 
device to /usr/share/kde, put symlinks for /etc/kde3, 
/usr/share/applnk,... pointing into /usr/share/kde

Question: If you mount a filesytem from a file in stead of a partition, 
what happens to disk cache? Is the file containing the filesystem 
cached? Or the single files inside the filesystem? Or both?


Stefan