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High CPU usage, sloooow system, Lucid

Asked by Audrey Spence

Hi, I am a newbie to this...been using Ubuntu for about 2 months and was able to solve a few start-up issues with all of your help. I appreciate it!
Now, my system runs very high CPU usage (between 63%-85%) all the time. Prevents me from loading Youtube videos, etc. I keep a lot of Firefox tabs open but had never had a problem with that before. Very choppy. Fan is on a lot. I have an HP dv2600 special edition laptop running 10.04.
If someone would take the time to help me figure out why this is happening and what I might be able to do about it I would appreciate it very much.I looked at some other questions in the forum but couldn't seem to grasp the directions (like I said, noob)...
Thanks,
Audrey

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actionparsnip (andrew-woodhead666) said : 		#1

Can you give the output of:

top -n 1 | head -n 12

Thanks

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Audrey Spence (aspence) said : 		#2

top - 09:46:12 up 2 days, 15:50, 2 users, load average: 1.46, 1.40, 1.36
Tasks: 185 total, 2 running, 183 sleeping, 0 stopped, 0 zombie
Cpu(s): 17.5%us, 3.6%sy, 0.8%ni, 77.6%id, 0.4%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 3290372k total, 1748880k used, 1541492k free, 166180k buffers
Swap: 9637880k total, 189652k used, 9448228k free, 892196k cached

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
 8331 root 20 0 8196 4424 2080 R 98 0.1 72:52.89 backend
 6753 audrey 20 0 546m 183m 31m S 16 5.7 93:53.00 firefox-bin
 6780 audrey 20 0 304m 75m 21m S 8 2.4 79:04.01 plugin-containe
 1369 audrey 20 0 157m 6436 5192 S 2 0.2 79:47.04 pulseaudio
 8918 audrey 20 0 118m 13m 10m S 2 0.4 0:00.35 gnome-terminal

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actionparsnip (andrew-woodhead666) said : 		#3

Ok lets see what this 'backend' process is.

https://bugs.launchpad.net/checkbox/+bug/553328

Seems you'll just have to kill it until the bug gets resolved.

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Audrey Spence (aspence) said : 		#4

I read this, and I guess I am still confused as to how to kill it...

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delance (olivier-delance) said : 		#5

The command
    sudo killall backend
should work.

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Audrey Spence (aspence) said : 		#6

It said "No process found"
Maybe it committed suicide?
:) Anyway, thanks for the help...It doesn't seem to be running the way it was. I am not sure why....

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actionparsnip (andrew-woodhead666) said : 		#7

If you run:

pidof backend

Then run:

sudo kill -9 foo

replace foo with the PID output. you can check it with:

ps -ef | head -n 12

If you don't see the app running, you are ok

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Audrey Spence (aspence) said : 		#8

The app does not appear to be running, but my load times for webpages are dreadfully slow. I just don't know why I have a computer sometimes *sigh*.

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delance (olivier-delance) said : 		#9

Could you see if issue is related to CPU load or problem with network ?
Check download rate of big file (but not you-tube) and check if it makes slower computer.
"The app does not appear to be running": what do you mean by that ?

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actionparsnip (andrew-woodhead666) said : 		#10

Try changing your DNS to 8.8.8.8 instead of your ISPs. Is it slow in all browsers? (Firefox is is disgustingly slow compared to chrome).

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