Question about boottime kubuntu 14.04 and 16.04

[anton]

Hmm thanks for the info,

I think I'll stay with 14.04 for a while.

Anton

O. Sinclair wrote:

> On 14/05/2016 17:02, bmarsh at bmarsh.com wrote:
>> 
>> 
>>> On May 14, 2016, at 10:28 AM, anton <antonxx at gmx.de> wrote:
>>>
>>> Hi,
>>>
>>> I did the following test:
>>> on my kubuntu 14.04 (64bit) I used Virtual Box 4.3.36 to
>>> create two virtual machines:
>>>
>>> 1. One with Kubuntu 14.04 64 bit (fresh install without updates)
>>> 2. One with Kubuntu 16.04 64 bit (fresh install without updates)
>>>
>>> Now I start the kubuntu 14.04 VM and habe the following timings +-2sec
>>> because I look on my watch:
>>>
>>> 1. Time from start to appearance of login screen: 18 sec
>>> 2. Time from login until appearance of desktop: 15 sec
>>> After a second try I get:
>>> 1. ... 21 sec
>>> 2. ... 14 sec
>>>
>>> Now I do the same test with kubuntu 16.04:
>>>
>>> 1. Time from start to appearance of login screen: 24 sec
>>> 2. Time from login until appearance of desktop: 23 sec
>>> After a second try I get:
>>> 1. ... 25 sec
>>> 2. ... 20 sec
>>>
>>> So I get the foolowing sums:
>>>
>>> Kubuntu 14.04
>>> 1. 33 s =  18 s + 15 s
>>> 2. 35 s =  21 s + 14 s
>>>
>>> Kubuntu 16.04
>>> 1. 47 s =  24 s + 23 s
>>> 2. 45 s =  25 s + 20 s
>>>
>>>
>>> OK, while these values are not soo precise there
>>> is a clear trand that kubuntu 16.04 seems to be slower on bootup,
>>> and on the login part.
>>>
>>> My questions:
>>> - do you observe similar values on your machines?
>>> - is the Virtual Box faking me?
>>> - is the login part slower due to plasma5 (Kde5 = qt5?)
>>>   or the use of QML? (I don't know what plasma 5 is really working)?
>>>
>> 
>> 
>> And my question is:   Why does it matter??   I might boot my machine once
>> a month or so...   Even a minutes difference wouldn't make a
>> hill-a-beans!
>> 
>> But I'm not sure your virtual runs are accurate...  I'm running 16.04
>> 64bit and it seems a lot faster.
>> 
>> It has always boggled my mind why people are so concerned about "boot
>> time".
>> 
> Not everyone can keep their computers on for ages. For me it is
> powercuts, internet goes down on and off, KWin starts chewing RAM and so
> on.
> 
> For me: have tried 16.04 around 4 times now. On 2 computers. Some or
> other thing goes wrong on every install. One boot on new laptop wireless
> is not on. On old laptop I get black screen.
> 
> Have also tried Manjaro. Same thing. There is something in the whole
> Plasma 5 thing that is unstable.
> 
> For now I hang on to old KDE4