On 12/16/19 12:22 AM, Ken Moffat via lfs-dev wrote:
On Sun, Dec 15, 2019 at 11:54:57PM -0600, Bruce Dubbs via lfs-dev wrote:
On 12/15/19 7:06 PM, Ken Moffat via lfs-dev wrote:
On Sun, Dec 15, 2019 at 12:30:52PM -0600, Bruce Dubbs via lfs-dev wrote:
https://www.phoronix.com/scan.php?page=article&item=10980xe-intel-linux
On the other hand on page 6, Systemd Total Boot Time
The best time was about 25 seconds. On my Haswell, my LFS System V boot
time is 8 seconds.
My haswell often spends several seconds in boot with things like
unbound (for me, that is used on all systems, not as a server
package). But I haven't timed a boot recently. For systemd
desktops, the time will include both X (or Wayland) and the
display manager.
For SysV the boot times are in /var/log/boot.log.
Well, yes, the times for userspace. On my haswell too, 8 seconds
(give or take 1 second since it only hours, minues, seconds). But my
impression has always been that modern kernels take several seconds.
For recent boots. dmesg -e will give relative times and the local time.
dmesg -T would work also. That can be used to coordinate kernel boot
time and boot script times. It's late here so tomorrow I'll add unbound
and lightdm and post those times.
Also, I don't know how phoronix measures boot times. They might or
might not consider kernel boot time. AFAICT, the only difference there
between distros on the same HW would be minor kernel configuration issues.
For me, the longest time at powerup or reboot is the system firmware
doing it's thing.
-- Bruce
--
http://lists.linuxfromscratch.org/listinfo/lfs-dev
FAQ: http://www.linuxfromscratch.org/faq/
Unsubscribe: See the above information page
