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#26 2011-08-29 16:29:12
- Damnshock
- Member
- From: Barcelona
- Registered: 2006-09-13
- Posts: 414
Re: KDE 4.7: very slow and high disk usage
1.) With a new user or fresh install, there is no wallpaper by default, even if I install kde-wallpapers before I log in, it makes no difference.
KDE 4.7 or Archlinux bug?
2.) Sometimes kwin will crash during log out.
Do you have the raster engine on? It doesn't happen to me if I run native engine...
3.) Worse yet, if I exit a full screen game, it will more than likely crash Kwin. This is a problem on my laptop (which has intel video) and not my desktop (which has nvidia video). If I don't remember to disable desktop effects before opening a game, I may run into a problem.
Although I admit that sounds like a bug, it's not that horrible: restart kwin and you are ready to go.
4.) Although my performance is good, it's not great. I would think a laptop with a Core i5 processor and 8GB of RAM would run faster than it is.
Have you tried recompiling the intel drivers with the --enable-sna option? It makes wonders on my Intel 945GM
My blog: blog.marcdeop.com
Jabber ID: damnshock@jabber.org
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#27 2011-08-29 16:41:21
- Beelzebud
- Member
- From: Illinois, U.S.
- Registered: 2010-07-16
- Posts: 154
Re: KDE 4.7: very slow and high disk usage
I have similar problems using KDE4.7 on Slackware 13.37. Sometimes it works fine, and other times I'll boot, and plasma-desktop will consume around 60% system memory just sitting on the desktop.
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#28 2011-08-29 18:31:05
- unluckyfool
- Member
- Registered: 2011-08-29
- Posts: 17
Re: KDE 4.7: very slow and high disk usage
I'm not sure if this will help, but you may want to look in /var/kdecache-USER. For some strange reason KDE feels the need to keep a cache the size of 80 MB of every plasma theme you use.
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#29 2011-08-29 20:01:40
- xunil9025
- Member
- Registered: 2011-02-26
- Posts: 61
Re: KDE 4.7: very slow and high disk usage
Kde was very good in the old days but the developers of kde don't care they put to many heavy bloat on it (okonadi nepomuk etc..
I think a dual core pc has trouble running Kde without getting stuck.
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#30 2011-08-29 21:01:17
- snack
- Member
- From: Italy
- Registered: 2009-01-13
- Posts: 876
Re: KDE 4.7: very slow and high disk usage
@DustinCasler: Try the Arch Rollback Machine to downgrade KDE:
https://wiki.archlinux.org/index.php/Do … ckages#ARM
It worked very well for me, then you can add KDE and related packages to IgnorePkg or IgnoreGroup to be able to upgrade other packages (but I think this can
screw your system in the long period, even if it might help to wait for KDE 4.7.1)
@unluckyfool: I tried deleting my /var/kdecache-USER and also create a brand new user, but nothing helped. What do you mean with your suggesytion?
@xunil9025: KDE works very well for me on my other two Arch installation. On my laptop I have this problem, but 4.6.5 worked beautifully. Most of all, if you don't
like strigi and alll that you can disable them. I love features and choice, that's why I'm on KDE.
Last edited by snack (2011-08-29 21:02:08)
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#31 2011-10-04 15:59:19
- snack
- Member
- From: Italy
- Registered: 2009-01-13
- Posts: 876
Re: KDE 4.7: very slow and high disk usage
Update: I think the problem is related to having an ext3 root partition. Does anyone who experience the slowdown also have an ext3 root partition? I also opened a bug report upstream:
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#32 2011-10-05 10:24:36
- toad
- Member
- From: if only I knew
- Registered: 2008-12-22
- Posts: 1,775
- Website
Re: KDE 4.7: very slow and high disk usage
I've got ext4...
never trust a toad...
::Grateful ArchDonor::
::Grateful Wikipedia Donor::
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#33 2011-11-04 13:13:46
- KejPi
- Member
- Registered: 2011-06-17
- Posts: 40
Re: KDE 4.7: very slow and high disk usage
I also have root partition on ext4 and experience problems with slow startup. I have found out that when I boot and start KDE it takes ages to start, also including heavy disk usage. But if I log out and log in again it is much faster. The difference is very significant.
By the way: on KDE 4.6.x it worked fine, I have never observed any problem like this.
Last edited by KejPi (2011-11-04 13:14:19)
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#34 2011-11-04 13:16:09
- snack
- Member
- From: Italy
- Registered: 2009-01-13
- Posts: 876
Re: KDE 4.7: very slow and high disk usage
There is some activity on KDE bugtracker I mentioned in post #31. Please refer to it as it is the most probable place where a solution might be found.
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#35 2011-11-04 13:22:45
- toad
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- From: if only I knew
- Registered: 2008-12-22
- Posts: 1,775
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Re: KDE 4.7: very slow and high disk usage
... But if I log out and log in again it is much faster. The difference is very significant ...
Naturally, all the libs are already loaded.
never trust a toad...
::Grateful ArchDonor::
::Grateful Wikipedia Donor::
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#36 2011-11-05 15:01:40
- francois.e
- Member
- Registered: 2011-11-02
- Posts: 61
Re: KDE 4.7: very slow and high disk usage
Update: I think the problem is related to having an ext3 root partition. Does anyone who experience the slowdown also have an ext3 root partition? I also opened a bug report upstream:
I am not a very refined user and new to arch linux. I have installed kde 4.7 on ext3 for all my partitions in a virtualbox guest. Kde 4.7 is unusable as it takes infinity to bootup. My computer is a hp pavilion laptop 2713ca.
Last edited by francois.e (2011-11-05 18:59:12)
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#37 2011-11-06 22:40:53
- masteryod
- Member
- Registered: 2010-05-19
- Posts: 433
Re: KDE 4.7: very slow and high disk usage
Personally I don't suffer from this issue but I can list my spec, maybe if we compare what works and what doesn't we could be able to figure this out?
- Intel Core 2 Duo (<- what a stupid name) 6300 @ 1.86GHz
- 2GB RAM
- WD Blue 500GB 3.5" 7200rpm
- m-ATX with GeForce 7100 / nForce 630i
- nvidia 285.05.09-1
- xorg-server 1.11.1.902-1
- kdebase-workspace 4.7.3-3
/tmp tmpfs nodev,nosuid 0 0
/boot ext2 defaults 0 1
swap swap defaults 0 0
/home ext4 defaults,noatime 0 1
/data ext4 defaults,noatime 0 1
/ ext4 defaults,noatime 0 1On this particular hardware KDE isn't rocket but it works fairly decent (and it's been more or less the same way since 4.6.x), graphically GeForce is ok, but you can feel slow apps loading (nothing critical though)
$ strace -c dolphin
dolphin(4238) KSambaSharePrivate::findSmbConf: KSambaShare: Could not find smb.conf!
dolphin(4238)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
dolphin(4238)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
dolphin(4238)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
dolphin(4238)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
dolphin(4238)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
dolphin(4238)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
34.37 0.000122 0 793 writev
26.48 0.000094 0 4060 2413 read
13.52 0.000048 0 514 113 open
9.58 0.000034 0 2440 614 stat
6.48 0.000023 0 291 mprotect
5.07 0.000018 0 105 getcwd
4.51 0.000016 0 1975 972 access
0.00 0.000000 0 34 write
0.00 0.000000 0 413 close
0.00 0.000000 0 545 fstat
0.00 0.000000 0 1326 472 lstat
0.00 0.000000 0 2165 poll
0.00 0.000000 0 30 lseek
0.00 0.000000 0 439 mmap
0.00 0.000000 0 130 munmap
0.00 0.000000 0 49 brk
0.00 0.000000 0 11 rt_sigaction
0.00 0.000000 0 2 rt_sigprocmask
0.00 0.000000 0 3 ioctl
0.00 0.000000 0 8 select
0.00 0.000000 0 1 msync
0.00 0.000000 0 2 madvise
0.00 0.000000 0 9 socket
0.00 0.000000 0 6 2 connect
0.00 0.000000 0 2 accept
0.00 0.000000 0 8 sendto
0.00 0.000000 0 725 sendmsg
0.00 0.000000 0 964 474 recvmsg
0.00 0.000000 0 3 bind
0.00 0.000000 0 2 listen
0.00 0.000000 0 6 getsockname
0.00 0.000000 0 3 getpeername
0.00 0.000000 0 2 setsockopt
0.00 0.000000 0 2 getsockopt
0.00 0.000000 0 1 clone
0.00 0.000000 0 1 execve
0.00 0.000000 0 2 kill
0.00 0.000000 0 14 uname
0.00 0.000000 0 125 fcntl
0.00 0.000000 0 14 getdents
0.00 0.000000 0 2 rename
0.00 0.000000 0 8 2 unlink
0.00 0.000000 0 16 readlink
0.00 0.000000 0 6 fchmod
0.00 0.000000 0 2 fchown
0.00 0.000000 0 2 umask
0.00 0.000000 0 1 getrlimit
0.00 0.000000 0 17 getuid
0.00 0.000000 0 5 getgid
0.00 0.000000 0 6 geteuid
0.00 0.000000 0 3 getegid
0.00 0.000000 0 47 15 statfs
0.00 0.000000 0 3 fstatfs
0.00 0.000000 0 1 sched_getparam
0.00 0.000000 0 1 sched_getscheduler
0.00 0.000000 0 2 sched_get_priority_max
0.00 0.000000 0 1 sched_get_priority_min
0.00 0.000000 0 1 arch_prctl
0.00 0.000000 0 6 1 futex
0.00 0.000000 0 1 set_tid_address
0.00 0.000000 0 2 clock_getres
0.00 0.000000 0 1 inotify_init
0.00 0.000000 0 4 inotify_add_watch
0.00 0.000000 0 2 inotify_rm_watch
0.00 0.000000 0 1 set_robust_list
0.00 0.000000 0 1 fallocate
0.00 0.000000 0 1 eventfd2
0.00 0.000000 0 1 pipe2
0.00 0.000000 0 1 inotify_init1
------ ----------- ----------- --------- --------- ----------------
100.00 0.000355 17370 5078 totalHope it'll help
PS KDE 4.7 on Arch guest on Virtualbox on top of i7 2600 (but with reserved just 1GB of ram if I recall correctly) is way faster in loading apps (plain WD black, not SSD)
Last edited by masteryod (2011-11-06 22:50:43)
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#38 2011-11-07 18:19:17
- bagheera
- Member
- Registered: 2009-06-13
- Posts: 84
Re: KDE 4.7: very slow and high disk usage
I can confirm similar bugs on my two machines (64 & 686 systems): desktop i3, 4GB RAM, GTX460, and msi wind netbook(intel atom, GMA). KDE sometimes hangs and being unresponsive when i use some plasmoids, like logout/shutdown window. It appears at random occasions, but it almost present, when i log out from one profile and log in into another one. Then most kde apps are unusable. It takes about 20 seconds to launch dolphin.
arch linux user
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