Boot-time improvements

Timo Jyrinki timo.jyrinki at
Thu Sep 11 07:32:08 UTC 2008

2008/9/10 Przemysław Kulczycki <przemekkulczycki at>:
> Maybe we could achieve it using Prefetch?

Prefetch would be nice, and definitely would improve the user
experience. In the end, it would however not fix the problem with
seeking to thousands of different files / positions. The only way to
fix that problem is to go with sequential, big files, either by
precisely reordering stuff on the disk in an area that can be made
100% sequential, or by copying files to a "cache" of sort, being a
single sequential file which contains everything needed and is updated
when needed.

There are so many seeks done from GRUB to GNOME desktop that the other
methods can only bring the time closer to the time spend on doing just
the seeks, which is still probably 20s or more. Of course all good
methods are worth implementing, since eg. 25s from GRUB to desktop
would be of course an improvement...


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