Re: Slow system boot up these days
by Robin Laing
On 08/04/17 01:06, Terry Barnaby wrote:
> Just an observation and to discuss the slow booting of Kde/Plasma/Linux
> these days.
>
> On a laptop I have, a Thinkpad T410, i5 4 core 2.6GHz, 4G RAM, Spinning
> 1 TByte 7200rpm disk (110 MBytes/s sequential reed speed) I get the
> following rough figures:
>
> Windows7 to login screen: 24s
> Windows7 from login screen to desktop: 10s
> Windows7 overall: 34s
>
> Fedora25/KDE to login screen: 50s (1:46 when updatedb runs)
> Fedora25/KDE from login screen to desktop: 50s
> Fedora25/KDE overall: 1:40 (-> 2:36 when updatedb is running)
>
> I get similar but slightly faster speeds on desktop i5 systems, again
> with spinning disks. SSD systems I have are faster (It does seem to be
> disk bound) but still not that quick.
>
> It is starting to get noticeable/an issue these days and getting
> embarrassing when going to meetings with a Linux Laptop !
>
> Once Fedora25/KDE its running it is quite snappy, unless there is disk
> activity going on in the background when some things can lockup awaiting
> disk (why should desktop code be so disk reliant ?)
>
> I know disk readahead is no longer present which doesn't help, but it
> does seem that the code in general, and KDE/Plasma specifically appears
> to be getting a bit bloated and disk bound. Of the 50s to login screen
> 23s appears to be due to sddm (not sure on that). Could this be due to
> more extensive usage of things like QtQuick (QtSlow !) ?
>
> Ok, I can buy a SSD, disable updatedb (but why does this start during
> boot quite often ?), change to a different desktop and/or suspend to
> mem/disk but really the system shouldn't be this slow and probably power
> consuming. Oh for the days of KDE 3 :)
> (An ancient Thinkpad 600E, Mobile Pentium II 363 MHz, 228 MBytes RAM
> running Fedora6 and KDE 3 system takes 21 s from login screen to KDE 3
> desktop (Ok Linux boot to login is a bit slow on that one at about 1:10)).
>
> Does anyone in the know think that this performance aspect may improve
> or get worse as the KDE/Plasma 5 series is developed ?
>
> Terry
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When it comes to Windows, make sure you are comparing windows with fast
boot or cold boot. There is a big difference I have seen. I know
yesterday on a laptop. KDE live USB was a much faster boot than Windows
from it's internal drive.
Now the login is another issue. I find KDE login is slow on my older
machines, slower than it used to be.
FWIWdmes
systemd-analyze
Startup finished in 2.072s (kernel) + 14.811s (initrd) + 40.174s
(userspace) = 57.059s
AMD FX(tm)-8320 Eight-Core Processor
Slower HDD'
Another machine F24
Startup finished in 1min 10.623s (firmware) + 5.244s (loader) + 9.764s
(kernel) + 35.582s (initrd) + 13.769s (userspace) = 2min 14.982s
Intel(R) Core(TM) i7-5930K CPU @ 3.50GHz
ssd HDD
This machine motherboard is slow to boot as it does some checks when
powering on and I don't know if that is part of the startup timing. I
will have to check with a watch one of these days.
Both machines have bios passwords and system encryption passwords.
From what I have heard, from cold boot, Windows 10 is slower on this
machine and runs slower.
Still, the time I press enter to login till KDE desktop is ready to use
seems to be slower.
6 years, 5 months
service menu only when 2 files are selected
by Reindl Harald
i created the servicemenu below because it's annoying that "kompare"
don't remember the last folder when chose files to compare
is there some way to limit it only to appear when *exactly* 2 files are
selected (yes ~/.local/share/kservices5 is a symlink to
~/.kde/share/kde4/services/ServiceMenus/ for handle the unholy mix of
KDE4/KDE5 stuff and i want my ark-contextmenues back as well as useable
kdesvn options in KDE5)
[harry@srv-rhsoft:~]$ cat
/home/harry/.kde/share/kde4/services/ServiceMenus/kompare.desktop
[Desktop Entry]
Type=Service
Encoding=UTF-8
ServiceTypes=KonqPopupMenu/Plugin,text/*,application/javascript,application/php,application/rss+xml,application/x-httpd-php,application/x-httpd-php-source,application/x-javascript,application/x-perl,application/x-php,application/x-sh,application/x-python,application/x-shellscript,application/xhtml+xml,application/xml+rss,application/xml
X-KDE-Priority=TopLevel
Actions=KompareFiles
[Desktop Action KompareFiles]
Name=Compare Files
Name[de]=Dateien vergleichen
Icon=kompare
Exec=kompare %U
6 years, 5 months
Kontact hangs in Fedora 26
by José Abílio Matos
Hi,
I have upgraded this week to Fedora 26 (post alpha).
The only issue that I have is that kontact hangs when launched. The cpu time
goes to 100% for kontact.
This is a minor annoyance since kmail, the component that I am mostly
interested in, works standalone with no apparent issue.
This is the only difference that I get from F25 either in KDE/plasma or in any
other component. :-)
--
José Abílio
6 years, 5 months
KDE in Rawhide: things are...bigger?
by Adam Williamson
Not quite sure how more specifically to describe this, but recently the
Rawhide KDE tests in openQA started failing because a couple of
interface elements are, well...bigger.
The openQA 'needle' for the KDE login screen matches on the generic
user avatar that's shown on that screen. In the last couple of Rawhide
composes it looks basically the same as before, only...bigger. Compare
today's F26 compose:
https://openqa.fedoraproject.org/tests/76678#step/_graphical_wait_login/3
and today's Rawhide compose:
https://openqa.fedoraproject.org/tests/76716#step/_graphical_wait_login/3
(It's easiest to compare by changing the 'Candidate needle' dropdown to
'None'). The 'shadow in a circle' thing looks basically the same, just...
*bigger*, in Rawhide.
Similarly with the Fedora logo kicker button on the desktop. F26:
https://openqa.fedoraproject.org/tests/76678#step/_graphical_wait_login/6
Rawhide:
https://openqa.fedoraproject.org/tests/76716#step/_graphical_wait_login/12
the kicker launcher icon is the Fedora logo in both cases, but in Rawhide,
it's just...bigger.
I can easily adjust the openQA needles to match the changes, I'm just
curious, really, whether this is an intentional change or not. Anyone?
--
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net
http://www.happyassassin.net
6 years, 5 months
F26 Konsole 16.12.3 lost scrollbar buttons
by Felix Miata
Scrollbar buttons disappeared, like the idiotic GTK3 defaults. How does one go
about getting them back?
--
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/
6 years, 5 months
Re: kwin / plasmashell not starting
by Robin Laing
On 30/03/17 19:33, Robin Laing wrote:
> On 29/03/17 03:41, Ian Malone wrote:
>> Has anyone else experienced this? Fairly frequently I find that kwin
>> on F25 is not starting on login, there are no window decorations (e.g.
>> title bar) and all new windows start at top left with no apparent way
>> to move them. The solution seems to be to start a console and run
>> "kstart kwin".
>> This morning however I didn't even have a desktop, just a cursor and
>> an otherwise black screen. What was working was that typing brought up
>> the command bar at the top of the screen, so I was able to start
>> konsole. "kstart kwin" and "kstart kwin --replace" didn't seem to
>> achieve anything (though maybe I could have waited longer), eventually
>> tried "kstart plasmashell" and things seemed to run again.
>>
>> This is the nouveau driver. I've had problems on F25 with getting
>> stuck at the splash screen ("K") after login, but adding nomodeset to
>> the kernel line in grub seemed to alleviate that, and I was using
>> nomodeset this morning.
>>
>
>
> I will add to this today as well. Latest update and my computer was
> useless unless I killed the full session.
>
> I didn't get anything by typing but I was in to much stress to even
> think about that. I will try that tomorrow as this is a work computer.
>
> My problem seems to occur if the system has gone into sleep mode.
>
> I set up a test account for testing a raw, clean account to see if it
> was related to an old configuration file that I have ran into in the past.
>
> KDE is falling apart since going to plasma and F25 has been good most of
> the time until these black screens have started.
>
> I won't be updating a few machines until I know that this isn't going to
> happen on a regular basis.
>
> Note, this has happened on F24 in the past week as well.
>
> Robin
> _______________________________________________
> kde mailing list -- kde(a)lists.fedoraproject.org
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This is definitely a kernel issue from what I am reading.
Ian, your suggestion to type in "kstart kwin --replace" worked if I had
a konsole open.
Anything I typed was associated with the last application open.
Robin
6 years, 5 months