Ubuntu Boot Times From Linux 4.6 To 4.15 Kernels

[caligula]

Startup finished in 5.7099s (firmware) + 25.3ms (loader) + 500.4ms (kernel) + 726.9ms (userspace) = 6.9626s

(that's to gnome3 GDM)

Not much hardware initialized, is there?

[arjan_intel]

Not much hardware initialized, is there?

it's a pretty standard NUC... all hw is initialized

[glasen]

it's a pretty standard NUC... all hw is initialized

My guess:

• Direct EFI booting of kernel. No need for a boot manager
• Kernel is self compiled and includes only necessary drivers
• No initial ramdisk
• Static network address
• ... some other optimizations that i currently can't remember.

[arjan_intel]

My guess:

• Direct EFI booting of kernel. No need for a boot manager
• Kernel is self compiled and includes only necessary drivers
• No initial ramdisk
• Static network address
• ... some other optimizations that i currently can't remember.

well not quite.. it's stock clear linux os... and systemd-boot as boot manager

[glasen]

it's stock clear linux os

Okay. I think i will give Clear Linux OS a try ;-)

[caligula]

it's a pretty standard NUC... all hw is initialized

OTOH, NUC is the smallest form factor desktop with lowest number of hardware to initialize.. no wonder my kernel boots slower as I have probably three times as many devices plugged in.