Boot speedup with readahead

[Harald Hoyer]

Davide Moretti schrieb:
> On my system:
> 
> Without readahead: 1 minute and 30 seconds
> With readahead: 1 minute and 30 seconds
> 
> Time was until gnome applet showed up, so on my system readahead did not 
> improve boot speed at all.
> 
> Note that there is a bug that prevents readahead-collector from starting 
> if you have selinux disabled, since the /.autorelabel file is still 
> hanging around during reboots, I had to remove this file for collector 
> to work.
> 
> 1) The rhgb removal is a big step forwards, rhgb slows down things a lot.
> 2) One major thing to look at I think is the initrd and udev, these take 
> really a lot of time
> 3) Get rid of that sysinit stuff and start using upstart jobs, I still 
> have not seen any progress on this.
> 
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Can you provide a bootchart for your system?
Best would be 2, one with and one without readahead