[LinuxBIOS] Boot Time
Ronald G. Minnich
rminnich at lanl.gov
Tue Apr 12 17:45:41 CEST 2005
On Tue, 5 Apr 2005, Tyson Sawyer wrote:
> Jun OKAJIMA wrote:
> > Hello.
> > I understand one of the biggest merits of LinuxBIOS is fast booting.
> > Then, how fast it is? The top page of the Wiki says 3 sec, and "7/25/01:
> > Dual Athlon update " issue says about 2 sec to
> > boot a kernel. But this log shows it took 20 sec.
> The dominant factors are device driver init/probing and starting services.
> Thus, boot time will be very dependent on system configuration. For the the 3
> second example I booted to a shell prompt using an initrd image, serial
> console and not much else. Most real systems are going to take a fair bit
> longer than that.
> The main difference w/linuxbios is that the kernel is loaded and running in
> under 1 second vs. 10-50 seconds for a COTS bios. How fast things go once the
> kernel is booted is up to you.
FAQ entry anyone?
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