Le 09/11/2015 15:58, Rainer Weikusat a écrit :
Didier Kryn <[email protected]> writes:
[...]
Maybe you never shutdown, but some, like me, prefer to put their
laptop back in a well-know state from time to time.
Indeed, I do reboot from time to time. Sometimes it's because I
didn't keep an eye on battery state - it's getting towards the end of
it's life and I can no longer rely on the "low battery warning,
followed a while later by a forced sleep and suspend to disk" that
happens with a healthy battery. More often it's to clear memory -
something seems to have a leak, and I'm not that convinced OS X
memory management is all that good. But normally, I just use sleep
mode.
When I was testing a static build of vdev, I used to reboot my
laptop several times per hour, alternatively to Debian Wheezy and to a
minimalistic OS on a USB stick, containing essentially vdev and
busybox. Reboot time is around 30s, yet it's still irritating.
Bios + Grub + kernel startup take by far the biggest part, but I
think there's room for progress on these.
"To a degree": The three things wich take longest when booting my
workstation are
- boot the kernel
- get an address via DHCP
- set the time via NTP
- boot the kernel: agreed.
- DHCP: use static config if your DHCP server is slow. This can be
done at home, and often also at work.
- NTP: if you have a working RTC onboard, you've got hours before a
time drift is detectable. I don't know of any service explicitely
depending on NTP.
Didier
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