Hi,
a couple of days ago I did the upgrade suggested by my system to the new 14.04 release. I followed the steps in the wizard and as far as I can tell everything went well. However, now the performance of my machine is slow and things frequently freeze for a couple of seconds. It's no comparison to the fast and reactive system I had before.
I did some googling around and found various fixes, however, none of them did the job for me. FIrst thing I did was disabling the desktop effects, but with no result. Next I looked into the Baloo issue that some people seemed to be having. But restricting indexing to, say, just my home directory didn't seem to solve the problem neither. Anyhow, from looking at the top ten cpu consuming programs it doesn't seem like something is "eating" my CPU.
$ ps -eo pcpu,pid,user,args | sort -k 1 -r | head -10
%CPU PID USER COMMAND
2.4 2676 maxi /usr/bin/plasma-desktop
2.3 19885 maxi /usr/bin/baloo_file_extractor 40203 40202 40201 40200 40199 40198 40197 40196 40195 40194 40193 40192 40191 40190 40189 40188 40187 40186 40185 40184 40183 40182 40181 40180 40179 40178 40177 40176 40175 40174 40173 40172 40171 40170 40169 40168 40167 40166 40165 40164
2.3 19311 maxi /usr/bin/ksysguard
19.0 7877 maxi /usr/lib/firefox/firefox
1.8 1118 root /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
0.2 19320 maxi ksysguardd
0.1 2757 maxi /usr/bin/pulseaudio --start --log-target=syslog
0.1 2668 maxi kwin
Also swappiness doesn't seem to be the issue since I have never observed any swapping in KSysguard.
My best guess at the moment is that it has something to do with the graphics card. I tried using a different driver as suggested here (It seems I can't post links. Google for "very-slow-graphics-performance-after-upgrade-12-04-14-04" on "askubuntu" ), but that didn't help neither. Also using the video=LVDS-1:d fix suggested in the same post didn't solve the problem for me.
About my machine: I have an Asus X53S with 4GB of RAM and both a NVidia GT540M and an Intel graphics card. Here are more details:
$ lspci | grep "VGA"
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 540M] (rev a1)
$ uname -a
Linux maxi 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
There is something I noticed when I was monitoring the CPU usage of my machine and that's that is seems to be juggling the jobs between two of the four CPUs. For a couple of seconds the first one has 100% and the other one 0% and then it swaps and the first one has 0% and the other one 100%. I feel this might have something to do with the problem, because I have never observed this behaviour before (I have the CPU monitor widget installed on my desktop).
It would be great if there was some way to solve my problem or, say, do a downgrade to 12.04.
Thanks very much for your help,
Maxi
a couple of days ago I did the upgrade suggested by my system to the new 14.04 release. I followed the steps in the wizard and as far as I can tell everything went well. However, now the performance of my machine is slow and things frequently freeze for a couple of seconds. It's no comparison to the fast and reactive system I had before.
I did some googling around and found various fixes, however, none of them did the job for me. FIrst thing I did was disabling the desktop effects, but with no result. Next I looked into the Baloo issue that some people seemed to be having. But restricting indexing to, say, just my home directory didn't seem to solve the problem neither. Anyhow, from looking at the top ten cpu consuming programs it doesn't seem like something is "eating" my CPU.
$ ps -eo pcpu,pid,user,args | sort -k 1 -r | head -10
%CPU PID USER COMMAND
2.4 2676 maxi /usr/bin/plasma-desktop
2.3 19885 maxi /usr/bin/baloo_file_extractor 40203 40202 40201 40200 40199 40198 40197 40196 40195 40194 40193 40192 40191 40190 40189 40188 40187 40186 40185 40184 40183 40182 40181 40180 40179 40178 40177 40176 40175 40174 40173 40172 40171 40170 40169 40168 40167 40166 40165 40164
2.3 19311 maxi /usr/bin/ksysguard
19.0 7877 maxi /usr/lib/firefox/firefox
1.8 1118 root /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
0.2 19320 maxi ksysguardd
0.1 2757 maxi /usr/bin/pulseaudio --start --log-target=syslog
0.1 2668 maxi kwin
Also swappiness doesn't seem to be the issue since I have never observed any swapping in KSysguard.
My best guess at the moment is that it has something to do with the graphics card. I tried using a different driver as suggested here (It seems I can't post links. Google for "very-slow-graphics-performance-after-upgrade-12-04-14-04" on "askubuntu" ), but that didn't help neither. Also using the video=LVDS-1:d fix suggested in the same post didn't solve the problem for me.
About my machine: I have an Asus X53S with 4GB of RAM and both a NVidia GT540M and an Intel graphics card. Here are more details:
$ lspci | grep "VGA"
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 540M] (rev a1)
$ uname -a
Linux maxi 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
There is something I noticed when I was monitoring the CPU usage of my machine and that's that is seems to be juggling the jobs between two of the four CPUs. For a couple of seconds the first one has 100% and the other one 0% and then it swaps and the first one has 0% and the other one 100%. I feel this might have something to do with the problem, because I have never observed this behaviour before (I have the CPU monitor widget installed on my desktop).
It would be great if there was some way to solve my problem or, say, do a downgrade to 12.04.
Thanks very much for your help,
Maxi
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