Version: (using KDE 4.2.0) OS: Linux Installed from: Fedora RPMs Hi, I installed KDE 4.2 from KDE tesing repo on Fedora 10. After a few minutes the swap space used increases abormally which causes the system to slow down and become completely unusable. Even if the RAM is not compleetely used for ex : 1gif of 4gig is used for RAM and swap used increases to the max of 2 gig... How Can I help? to diagnose this issue? Regards vouchy
What applications are using the RAM/swap ? You can use KSysguard, or the "top" command. Not using the whole RAM and using the swap may be a system-wide setting in your configuration. (Not sure what setting now)
Hi, Thanks for your quick reply. Actually, swap is used because RAM memory is fully used. So the issue is more : "A memory leak" which causes system to swap. Here is the top evolution after 10 minutes : top - 10:04:08 up 6 min, 5 users, load average: 1.19, 1.53, 0.80 Tasks: 166 total, 2 running, 164 sleeping, 0 stopped, 0 zombie Cpu(s): 6.3%us, 2.9%sy, 0.0%ni, 90.6%id, 0.0%wa, 0.0%hi, 0.2%si, 0.0%st Mem: 4051108k total, 3457528k used, 593580k free, 25780k buffers Swap: 2048248k total, 0k used, 2048248k free, 2518912k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3348 root 20 0 586m 163m 22m S 8.0 4.1 0:55.83 X 4048 scorbel 20 0 502m 86m 21m S 0.0 2.2 0:12.72 firefox 2922 root 20 0 516m 68m 12m S 0.0 1.7 0:05.70 webAccess 3831 scorbel 20 0 689m 56m 25m S 1.3 1.4 0:09.15 plasma 4714 scorbel 20 0 506m 48m 23m S 0.0 1.2 0:05.60 thunderbird-bin 3094 root 20 0 194m 45m 14m S 0.0 1.2 0:01.55 vmware-hostd 4071 scorbel 20 0 403m 37m 22m S 0.0 1.0 0:00.49 python 4039 scorbel 20 0 688m 36m 19m S 0.0 0.9 0:01.14 pidgin 3927 scorbel 20 0 337m 35m 4172 S 0.0 0.9 0:00.35 mysqld 4560 scorbel 20 0 427m 34m 21m S 0.0 0.9 0:02.18 dolphin 5109 scorbel 20 0 371m 32m 23m S 0.0 0.8 0:00.93 kate 3901 scorbel 20 0 595m 28m 21m S 0.0 0.7 0:00.68 krunner 3923 scorbel 20 0 404m 27m 16m S 2.3 0.7 0:02.43 konsole 4056 scorbel 20 0 338m 26m 12m S 0.0 0.7 0:00.50 guidance-power- 3821 scorbel 20 0 329m 23m 16m S 0.7 0.6 0:14.56 kwin 3829 scorbel 20 0 501m 22m 13m S 0.0 0.6 0:00.44 knotify4 3778 scorbel 20 0 428m 19m 14m S 0.0 0.5 0:00.65 kded4 3819 scorbel 20 0 324m 17m 14m S 0.0 0.5 0:00.22 ksmserver 4082 scorbel 20 0 365m 15m 9868 S 0.7 0.4 0:02.64 cairo-dock 3910 scorbel 20 0 276m 15m 13m S 0.0 0.4 0:00.12 konqueror 3905 scorbel 20 0 276m 15m 11m S 0.0 0.4 0:00.19 kmix 4055 scorbel 20 0 285m 15m 12m S 0.0 0.4 0:00.08 akonadi_vcard_r 4078 scorbel 20 0 298m 12m 10m S 0.0 0.3 0:00.21 klipper 3776 scorbel 20 0 243m 11m 9920 S 0.0 0.3 0:00.13 klauncher 4068 scorbel 20 0 332m 10m 8552 S 0.0 0.3 0:00.42 nm-applet 3892 scorbel 20 0 245m 10m 8256 S 0.0 0.3 0:00.09 kaccess 3830 scorbel 20 0 250m 10m 8000 S 0.0 0.3 0:00.05 nepomukserver 4180 scorbel 20 0 193m 9.9m 6480 S 0.0 0.3 0:00.24 emerald 4595 scorbel 20 0 243m 6780 4260 S 0.0 0.2 0:00.01 kio_trash 3914 scorbel 20 0 353m 6204 4616 S 0.0 0.2 0:00.05 akonadiserver After 10minutes top - 10:09:12 up 11 min, 5 users, load average: 0.69, 0.99, 0.75 Tasks: 168 total, 2 running, 166 sleeping, 0 stopped, 0 zombie Cpu(s): 8.0%us, 3.5%sy, 0.0%ni, 88.3%id, 0.0%wa, 0.0%hi, 0.2%si, 0.0%st Mem: 4051108k total, 4027268k used, 23840k free, 1816k buffers Swap: 2048248k total, 2048248k used, 0k free, 2000284k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3348 root 20 0 591m 170m 22m R 10.6 4.3 1:40.82 X 4048 scorbel 20 0 491m 85m 21m S 0.0 2.2 0:14.93 firefox 2922 root 20 0 516m 68m 12m S 0.0 1.7 0:06.06 webAccess 3831 scorbel 20 0 689m 56m 25m S 1.0 1.4 0:15.90 plasma 4714 scorbel 20 0 506m 48m 23m S 0.0 1.2 0:06.27 thunderbird-bin 3094 root 20 0 194m 45m 14m S 0.0 1.2 0:01.61 vmware-hostd 4071 scorbel 20 0 403m 37m 22m S 0.0 1.0 0:00.49 python 4039 scorbel 20 0 688m 36m 19m S 0.0 0.9 0:01.20 pidgin 3927 scorbel 20 0 337m 35m 4172 S 0.0 0.9 0:00.56 mysqld 5109 scorbel 20 0 393m 35m 24m S 0.0 0.9 0:03.16 kate 4560 scorbel 20 0 427m 34m 21m S 0.0 0.9 0:02.27 dolphin 3901 scorbel 20 0 595m 28m 21m S 0.0 0.7 0:00.79 krunner 3923 scorbel 20 0 404m 27m 16m S 3.6 0.7 0:04.29 konsole 5482 scorbel 20 0 383m 27m 19m S 2.7 0.7 0:12.78 ksysguard 4056 scorbel 20 0 338m 26m 12m S 0.0 0.7 0:00.78 guidance-power- 3821 scorbel 20 0 329m 23m 16m S 1.0 0.6 0:23.27 kwin 3829 scorbel 20 0 501m 22m 13m S 0.0 0.6 0:00.47 knotify4 3778 scorbel 20 0 428m 19m 14m S 0.0 0.5 0:00.72 kded4 3819 scorbel 20 0 324m 17m 14m S 0.0 0.5 0:00.23 ksmserver 4082 scorbel 20 0 365m 15m 9868 S 0.7 0.4 0:04.66 cairo-dock 3910 scorbel 20 0 276m 15m 13m S 0.0 0.4 0:00.14 konqueror 3905 scorbel 20 0 276m 15m 11m S 0.0 0.4 0:00.21 kmix 4055 scorbel 20 0 285m 15m 12m S 0.0 0.4 0:00.08 akonadi_vcard_r 4078 scorbel 20 0 298m 12m 10m S 0.7 0.3 0:00.39 klipper 3776 scorbel 20 0 243m 11m 9920 S 0.0 0.3 0:00.13 klauncher 4068 scorbel 20 0 332m 10m 8552 S 0.0 0.3 0:00.50 nm-applet 3892 scorbel 20 0 245m 10m 8256 S 0.0 0.3 0:00.13 kaccess 3830 scorbel 20 0 250m 10m 8000 S 0.0 0.3 0:00.05 nepomukserver 4180 scorbel 20 0 193m 9.9m 6480 S 0.0 0.3 0:00.34 emerald 4595 scorbel 20 0 243m 6832 4280 S 0.0 0.2 0:00.02 kio_trash If you have any clue ?? This is not happening with Gnome. Regards vouchy
When you are in "top", you can type "M" (Shift+m) to order the process by memory usage. So the processes consuming more memory will appear in the top of the list. ((Looking at the lists you posted it seems they are already ordered by mem usage)) In the process list you posted I can't see any bigmemoryconsumer application. Also you are running a lot of different applications, so, can you try starting one application at time, (or using only KDE-apps) for a while to test, what application is leaking memory. Thanks
Hi, Still got the issue ... It seems that the cache is growing up ... when memory is full, cache is full system swaps. To get rid of this I have to echo 1 > /proc/sys/vm/drop_caches Why caching is so intensively used with kde and not with gnome ?? Rgs vouchy
Sorry, I can't get rid of this dropping cache ...using any workaround Cache is fully used then system swaps anormally Please help me to investigate root cause of this issue? I will attach a small .ogg showing the culprit ... I do not have any issue with FC10+gnome+compiz but I prefer to use KDE ... Rgs vouchy
Did you tested what I commented in comment 3 ? Leaving a "default" desktop (not apps launched) some time..., check the memory. And start applications one by one, checking the memory Thanks
Yes, I just tested it Closed all apps , only networkmanager, kinfocenter are running I can close thos apps I am pretty sure the same will occur The cache is increasing as recorded by the video then when cache is full swap is used until system is unusable ... Rgs vouchy
Created attachment 31163 [details] recording
Hi, I am confirming that with gnome+compiz all metrics (free, disk cache ...) are staying the same if I do not do anything...They are not increasing Rgs vouchy
Can you try with a clean new user account ? (just for testing). The new user account will have only defaults applications on load. Login on that test account only and see what happens. Also, try to disable the KNetworkManager app/plasmoid. Thanks
OK, Here is what I did : - Created a test user and logged in with this user
Then I killed everything until the free memory does not decrease. Then I logged in back with my user ... and began to start apps one by one ... The memory metrics was staying calm:=) the same .. Issue was not there! Then I used the services manager to start NetworkManager, the applet started, and the memory stayed calm , cool ! And when I closed the services manager window ---> The issue reappears and the free memory began to decrease continuously... Maybe related to kwin and window management ... What do you think? Thanks a lot for your help Any clue?? Rgs vouchy
It may be related , can you try using another Window Decoration? (like Plastique) , or dissabling Desktop Effects (if they are activated)
Hi, disabling desktop effects solved the issue... Any clue to investigate? I tried to enable destop effect but disable all effects and issue is back again.. Please how can I find the root cause? Rgs vouchy
May be the reponsible of the Desktop Effects will know how to help
First to check: which graphics card and which driver are you using? If available could you try a newer release? E.g. NVIDIA 180.x instead of 177.x. I assume you are using the OpenGL backend. Does changing to the XRender backend help? I once had this problem with KDE 4.0. but since then everything is fine.
Hi, Intel Corporation Mobile GM965 and the xf86-video-intel 2.5.0 intel drivers. drivers compiled against running kernel. 2.6.27.12-170.2.5.fc10.x86_64 I will try Xrender. Regards vouchy
Hi, finally installed 2.6.29 kernel and compiled intel drivers ... So far (A day) no issue anymore ... I can now take the benefit of using KDE 4.2 which I sincerely love!! Thanks a lot for your effort. Regards vouchy
There is a bug in launchpad which looks the same as this bug: https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/303011 Maybe someone could help to resolve that bug.