On 25.09.2009 18:21, ron minnich wrote:
http://www.engadget.com/2009/09/24/video-phoenix-instant-boot-bios-starts-lo...
too bad their software is still closed and a security risk but hey ...
They do hardcode everything (SPD, PCI, HDD, ...) and rely on disks which are already spinning and have fast link negotiation (which can only be achieved if the machine is already on and you hit reset). Add some RAM and the whole thing falls apart (you can't even boot anymore unless you trigger a fallback mechansim which is not present yet AFAIK). Add a PCI/PCIe/CardBus/Expresscard card and the whole thing falls apart. Needless to say that this is focused on laptops where hardware seldom changes. Ah, and of course they removed all BIOS compatibility to save some time. Some people also reported that the fast Windows boot time was achieved by rebooting Windows on shutdown, then going to Suspend-to-disk with the freshly booted Windows to get an impressively fast "boot" speed for Windows.
Essentially, this is a trick. We are faster even without these tricks. And if they ever claim these numbers are not tricks, we can say that we spend 0 ms inside EFI and 0 ms inside BIOS (in the FILO/GRUB2/Linux-as-payload case) and it should be hard for them to beat our perfect zero timing.
Regards, Carl-Daniel
P.S.: I foresee claims about negative boot times once someone figures out that resume is faster than regular boot and claims that resume is sort of a special boot sequence.