Optimization Kit wrote:
On 02/04/2008, Harald Hoyer <harald@xxxxxxxxxx> wrote:
F9 Beta install -> yum update
Boot time: 55s
Turning off all services, but the most needed for an internet connected
desktop, saves 4s from 12.5s service boot time. IMO not worth the loss of
functionality.
55s - 12.5s = 42.5s
42.5s from boot manager to rc5 if I understand it correctly. Strange!
no... 12.5 = runlevel start -> X11 start ... overall boot time in the bootchart ends with the gdm greeter
Here is a worst case scenario on my machine 30s to rc5
http://www.stardust.webpages.pl/files/fedora-upstart/bootchart-serial.png
arping in network static startup and "rdisc", which I don't know.
Turning off rhgb saves 6s. Eyecandy or faster booting? I take the 6s.
Thanks.
Turning off selinux and related services saves 10s overall boot time.
Trading off security with boot time. I don't know. But maybe a good starting
point for optimization.
Fedora has wonderful security features. I tuned boot time to 29s
without disabling them.
http://www.stardust.webpages.pl/files/bootchart04.png
well, this is what I mean.
Look at http://people.fedoraproject.org/~harald/bootchart-6.svg
You have compiled your own kernel, without modules, IIRC. See how fast nash is in your chart.
You Me
until rc.sysinit start: 4 12
rc.sysinit duration: 7.4 9
rc -> X11 start: 10 8
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