Systemd tuning gets boot times down to less than 2 seconds
Linked by diegocg on Sun 13th May 2012 23:48 UTC
Linux Lennart Poettering, the author of systemd, has announced: "I just put a first version of a wiki document together that lists a couple of easy optimizations to get your boot times down to [less than] 2s. It also includes a list of suggested things to hack on to get even quicker boot-ups."
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Why do fast boot times matter?
by Hypnos on Mon 14th May 2012 01:14 UTC
Hypnos
Member since:
2008-11-19

Can anyone explain to me why fast boot times matter? I reboot my laptop at most a few times a year when I upgrade my kernel. I suspend-to-RAM several times a day, and hibernate when I travel.

Aren't fast login times much more important on multi-user systems?

Reply Score: 8

shotsman Member since:
2005-07-22

Boot times matter because there are many brain dead journo's out there that think that boot times are a measure of how fast a particular distro is.

As opposed to some real life benchmarks but that would take real work on their part rather than hitting 'Next' in the installers and using that for their copy.

Reply Parent Score: 4

Alfman Member since:
2011-01-28

Alot of people here think boot time doesn't matter. I know hibernation makes boot times less frequent and less relevant to some people. However sleep/hibernation modes represent a great deal of complexity between OS/BIOS/hardware, and is frequently the cause of driver bugs. If turning on a computer was as fast as waking it up from sleep, then it might eventually enable a OS to do away with the ugly complexities of hibernation.

In my opinion one should be able to turn on and use a computer much like they turn on and use a TV - only waiting for the display to "warm up".

Reply Parent Score: 2

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dsmogor Member since:
2005-09-01

Hibernation rarely works in Linux world.
It's always something, either your Wifi, soundcard or whatever you have connected to USB, but one single faulty driver makes the whole hibernation as bootup concept useless.

Reply Parent Score: 4

Neolander Member since:
2010-03-08

A while ago, I have tried to sum up in a blog post the reasons why I prefer to turn my computer off instead of putting it to sleep when I'm not using it. Maybe you would want to read that.

http://theosperiment.wordpress.com/2011/07/15/5-reasons-why-i-think...

Reply Parent Score: 2

Hypnos Member since:
2008-11-19

Thanks for the link. My responses:

#1 -- don't care. I use my laptop like my phone, always has to be at the ready.

#2 -- not sure. I've never had RAM fail on me despite 24/7 operation. It's true that constant charge/drain on a Li-ion battery is not good. On my Thinkpad I set the charge thresholds using the SMAPI interface and leave the laptop plugged in most of the time.

#3, #4 -- not really a problem in Linux

#5 -- this one is more interesting -- I will consider it.

Reply Parent Score: 2

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