On 13/04/17 10:35, Reindl Harald wrote:
Am 12.04.2017 um 19:59 schrieb Terry Barnaby:
But SDDM takes about 20s on its own (not in the systemd-analyze) ! And
sddm is a trivial/noddy program that does not do a lot at all, should
take < 100ms. This is followed by a KDE/Plasma startup time of 50s. So
overall the Linux boot is 30s and KDE/Plasma (sddm + user login) is
70s which seems an awful lot to put an image on the background and
display a few icons ( :) ).
but SSDM does not live on it's own
it shares the disk with all other stuff
But, just starting it with "systemctl start sddm" after the system has
booted to console takes a long time. Everything should have settled by
then so it should mainly just be sddm pulling in libraries/files etc.
consider disable unused services and the concurrency on the rotating
disk which is the problem because the head movements will go down
Although using an SSD is a workaround, I don't think the system,
shouldn't be as grossly inefficient as this. Imagine the speed on an
SSD system with an efficient desktop boot :)
i have rotating disks and none of your problems
As a matter of interest how long does your system take to get to a SDDM
login screen and then how long from this point to a fully logged in state ?
What are its system characteristics ?
Anyway, I am just asking, if anyone who understands the architecture
of KDE/Plasma5 thinks the performance of this aspect will likely
improve or get worse and why KDE/Plasma5 is so much worse than
previous versions on spinning disk systems
which is not true - frankly on a proper configured system running Fedora
24/25 with plasma5 "iostat 1" most of the time shows no IO at all and if
i am not careful with my settings that below happens - the rotating
disks spin down and get waked up every few minutes and that mostly is
triggered by my muisc player loads the next track in background
Start_Stop_Count 0x0032 099 099 020 Old_age Always
- 1154
Power_On_Hours 0x0032 099 099 000 Old_age Always
- 1527
Power_Cycle_Count 0x0032 100 100 020 Old_age Always
- 2
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Sorry, I don't understand what is not true in my statement, I think I
just asked a question ?
Its the boot up time I am mainly concerned with, once loaded the
KDE/Plasma5 is quite responsive although parts of it does hang for
periods with a lot of disk/NFS activity.
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