Fedora Linux Support Community & Resources Center
  #1  
Old 24th November 2011, 06:07 AM
westand Offline
Registered User
 
Join Date: May 2008
Posts: 58
linuxfirefox
TOP consumes 100% CPU

My fan is working pretty hard when the computer is idle-ish (and running hot). So I run "top" to see what is going on, and it shows that "top" has 100% utilization. Never seen this before. Also doesn't give me the greatest idea what is going on. How should I troubleshoot each of these issues: (a) top being stupid even though the delay is set to 3 seconds, and (b) the larger issue of the fan always being on.
Reply With Quote
  #2  
Old 24th November 2011, 08:02 AM
JEO Offline
Registered User
 
Join Date: Jan 2006
Posts: 2,787
linuxfirefox
Re: TOP consumes 100% CPU

I would try booting from various versions of the live cd and see if the problem shows up there. Also if you put more specific information about what type of hardware you have someone might have the same and be able to help.
Reply With Quote
  #3  
Old 24th November 2011, 09:59 AM
outsourcededm Offline
Registered User
 
Join Date: Oct 2011
Posts: 14
linuxchrome
Re: TOP consumes 100% CPU

i've previously had an issue with FF plugins running away on CPU and mem leaks.. do you have firefox running when PC is 'idleish?'
Reply With Quote
  #4  
Old 24th November 2011, 03:25 PM
PatMcLJr Offline
Registered User
 
Join Date: Apr 2005
Location: earth
Posts: 1,189
linuxopera
Re: TOP consumes 100% CPU

my 2 cents, top works well but htop is what I prefer, you can kill a process on the spot and chose you flavor of killing, I use good old #9
__________________
x--x--x
http://www.gnu.org/philosophy/free-sw.html
Freedom is never Free.
Pat Jr.
Reply With Quote
  #5  
Old 24th November 2011, 03:41 PM
jpollard Offline
Registered User
 
Join Date: Aug 2009
Location: Waldorf, Maryland
Posts: 6,877
linuxfedorafirefox
Re: TOP consumes 100% CPU

You don't indicate which release you are using, but I have found that the named process has a tendency to run away with itself. (right now mine indicates 138% of a CPU - I have 8 cores, so it's impact is not critical)

another one is the gnome e-calendar-factory, as it seems to not terminate when the user logs out. This leaves a growing number of processes though none appear to use the cpu that much... though even killing them all, they keep coming back if somebody is logged in.

Top itself does take a lot of time - but remember, at the time top is taking it's CPU samples, it has to also be running.... which gives it a tendency to catch itself as the top user (right next to X or the terminal session when using a terminal window).

Also top does let you kill processes.

There is a warning about using 9 to kill processes -- yes it will kill it, but it can also cause file corruption if it is something that uses keyed files... I use 15 (SIGTERM) first, which allows the process at least a chance to close things out flushing buffers, but if it doesn't work, then a 9 (SIGKILL) which cannot be caught.

Last edited by jpollard; 24th November 2011 at 03:47 PM.
Reply With Quote
  #6  
Old 24th November 2011, 04:02 PM
PatMcLJr Offline
Registered User
 
Join Date: Apr 2005
Location: earth
Posts: 1,189
linuxopera
Re: TOP consumes 100% CPU

Thanks for the tip, I'll switch over to that.
__________________
x--x--x
http://www.gnu.org/philosophy/free-sw.html
Freedom is never Free.
Pat Jr.
Reply With Quote
Reply

Tags
100%, consumes, cpu

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
xorg consumes too much cpu on F11 tomabroad Using Fedora 3 22nd December 2010 06:52 PM
FC11 (FINAL) - Firefox consumes HUGE amounts of CPU [SOLVED] PompeyBlue Using Fedora 5 9th June 2009 06:12 PM
openoffice consumes cpu Wiles Using Fedora 3 28th February 2007 07:21 PM


Current GMT-time: 12:10 (Sunday, 23-11-2014)

TopSubscribe to XML RSS for all Threads in all ForumsFedoraForumDotOrg Archive
logo

All trademarks, and forum posts in this site are property of their respective owner(s).
FedoraForum.org is privately owned and is not directly sponsored by the Fedora Project or Red Hat, Inc.

Privacy Policy | Term of Use | Posting Guidelines | Archive | Contact Us | Founding Members

Powered by vBulletin® Copyright ©2000 - 2012, vBulletin Solutions, Inc.

FedoraForum is Powered by RedHat
Lavras da Mangabeira Photos - Alwar Photos on Instagram - Nileshwar