LinuxQuestions.org
LinuxAnswers - the LQ Linux tutorial section.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Server
User Name
Password
Linux - Server This forum is for the discussion of Linux Software used in a server related context.

Notices



Reply
 
Search this Thread
Old 03-31-2008, 02:06 AM   #1
ElectroLinux
Member
 
Registered: Feb 2004
Posts: 74

Rep: Reputation: 15
Question Disable CPU cores in RHEL3


I have two quad core Intel cpus. I would like to be able to disable some cores for testing. How can I do this? Grub.conf? RHEL3 config file?

If I can disable the number of cores, can I also disable certain cores on certain physical processors?

All options for doing this would be greatly appreciated.
 
Old 03-31-2008, 06:34 PM   #2
ElectroLinux
Member
 
Registered: Feb 2004
Posts: 74

Original Poster
Rep: Reputation: 15
I was able to use maxcores= in the grub.conf, but how can I disable and enable while running an app? There is some sort of cpu hotplug, but I'm running 2.4 which cpu hotplug doesn't support. Also, i don't think i can enable this in the kernel since I installed the rpm for the kernel I am running.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
LXer: Take advantage of multiple CPU cores during file compression LXer Syndicated Linux News 0 02-13-2008 09:40 PM
Software and CPU Cores DIGITAL39 Linux - Software 8 10-10-2007 03:47 AM
Can Linux SMP Kernel Support 3 Cores CPU? btbx Linux - Kernel 1 07-26-2007 04:04 AM
RHEL3 how to disable time syncro with hw clock? solik Linux - Enterprise 1 01-25-2007 09:39 AM
how to find number of cores in CPU narensr Linux - Hardware 5 08-24-2006 02:09 PM


All times are GMT -5. The time now is 08:57 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration