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Ubuntu - 3570K

12 posts in this topic

Posted

Why is Ubuntu always running my 4 cores on my i5 3570K at 100%? I couldn't find any threead on google explaining this. IDK if it's because I used mprime (prime95) in the past and it can't let that go...

Help fast, please?

Edit: I looked in system monitor, and nothing of the processes is using my CPU...

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Posted

Stupid question, have you rebooted?

I have never heard of anything permanently using the CPU at 100%.

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Posted

1: What makes you think 100% CPU is happening?

2: If you close all applications - does the symptoms continue?

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Posted

Yes, bman, I restarted about 10 times now, trying to look in BIOS, see if there was anything.

Tim, if you asked that question again, I would have shot you.. How did I know that no program is using the CPU? System Monitor.

Screenshotfrom2013-02-12202026_zpsb15cb5f3.png

NO PROGRAM is using up the CPU to 100%...

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Posted

I have never seen an issue such as this before. Try listing your top processes by CPU utilization. The following command will list the five programs using the most CPU in descending order:


ps -eo '%C %p %a' --sort '-pcpu' | head -n 6

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Posted


david@david-ubuntu:~$ ps -eo '%C %p %a' --sort '-pcpu' | head -n 6

%CPU   PID COMMAND

99.9  3170 /home/david/mprime/mprime

52.5  1717 ecm -resume checkpnt -v -nn -timestamp -chkpnt checkpnt -inp in -maxmem 1800 260e6

52.4  1718 ../../projects/www.rechenkraft.net_yoyo/harmtree_0.10_i686-pc-linux-gnu

51.9  1720 ../../projects/www.rechenkraft.net_yoyo/harmtree_0.10_i686-pc-linux-gnu

51.6  1721 ../../projects/www.rechenkraft.net_yoyo/harmtree_0.10_i686-pc-linux-gnu

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Posted

Based on your output, I think I know what's eating your processor time. You should definitely try killing harmtree and mprime, at least. I would do the following (note that sudo may not be necessary):


sudo killall -9 harmtree_0.10_i686-pc-linux-gnu

sudo killall -9 ecm

sudo killall -9 mprime

The real question is why these programs are running after reboot. Something is definitely misconfigured.

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Posted

I did all that, restarted, and, well...


david@david-ubuntu:~$ ps -eo '%C %p %a' --sort '-pcpu' | head -n 6

%CPU   PID COMMAND

88.3  1713 dnetc -runoffline -multiok=1 -e u_David@yoyo.rechenkraft.net -numcpu 0 -n 1 -ckpoint chkpoint -pausefile pause -exitfile exit -inbase in -outbase out

86.9  1702 ../../projects/www.rechenkraft.net_yoyo/harmtree_0.10_i686-pc-linux-gnu

84.4  1699 ../../projects/www.rechenkraft.net_yoyo/harmtree_0.10_i686-pc-linux-gnu

82.1  1701 ../../projects/www.rechenkraft.net_yoyo/harmtree_0.10_i686-pc-linux-gnu

51.0  2841 /usr/bin/python /usr/lib/ubuntuone-client/ubuntuone-syncdaemon

So I tried:

david@david-ubuntu:~$ killall -9 harmtree_0.10_i686-pc-linux-gnu

harmtree_0.10_i686-pc-linux-gnu(1699): Operation not permitted

harmtree_0.10_i686-pc-linux-gnu(1701): Operation not permitted

harmtree_0.10_i686-pc-linux-gnu(1702): Operation not permitted

harmtree_0.10_i686-pc-linux-gnu: no process found

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Posted

Ah, now I found the culprit, it was BOINC, forgot I installed that... Deleted, CPU goes down.

Sorry...

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Posted

I still have no idea what that program is or why it was causing such unreasonable CPU usage, but I'm glad you figured it out. Hopefully you learned something cool in the process!

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Posted

You need to use 'sudo' before the command.

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Posted

Yeah, I did the wrong text for that.

From what I can see, BOINC is a lot like F@H. Some of the same functions.

I was thinking this was, from description, a stress tester for your CPU. In a sense, It is, but isn't? :shiftyninja:

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