LinuxQuestions.org
Register a domain and help support LQ
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 06-10-2009, 09:36 AM   #1
harpreetis25
LQ Newbie
 
Registered: Jun 2009
Posts: 2

Rep: Reputation: 0
Where do we use smp kernel and where hugeman


I have a confusion that when we have to use normal or smp kernel and when should we use hugeman kernel in RedHat Linux.
What are the memory limits they support.
 
Old 06-10-2009, 10:05 AM   #2
TB0ne
LQ Guru
 
Registered: Jul 2003
Location: Birmingham, Alabama
Distribution: SuSE, RedHat, Slack,CentOS
Posts: 18,327

Rep: Reputation: 3881Reputation: 3881Reputation: 3881Reputation: 3881Reputation: 3881Reputation: 3881Reputation: 3881Reputation: 3881Reputation: 3881Reputation: 3881Reputation: 3881
Quote:
Originally Posted by harpreetis25 View Post
I have a confusion that when we have to use normal or smp kernel and when should we use hugeman kernel in RedHat Linux.
What are the memory limits they support.
hugemem kenel supports a 4GB per process user space (versus 3GB for the other kernels), and a 4GB direct kernel space. Using this kernel allows Red Hat Enterprise Linux to run on systems with up to 64GB of main memory. The hugemem kernel is required in order to use all the memory in system configurations containing more than 16GB of memory.

SMP kernel can not support mmeory large than 32G, and more RAM a system had requires more space from the lowmem area, due to 32-bit linux smp kernel lowmem limitation.

please also following this link:
http://kbase.redhat.com/faq/FAQ_80_1013.shtm

Google has alot more on this....easy to find...
 
  


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
How do I upgrade from kernel 2.6.27.7-smp to kernel 2.6.28.7-smp? trist007 Slackware 3 03-17-2009 09:22 PM
Non-SMP kernel modules for SMP kernel: Best practice? gargamel Slackware 9 12-29-2008 02:13 PM
SMP vs Non-SMP Kernel questions paulsiu Linux - Kernel 1 05-29-2007 04:58 PM
Hyperthread server goes to kernel panic with SMP kernic, boots ok with non SMP kernel abefroman Linux - Kernel 1 09-15-2006 06:43 PM
Any reason to keep a non-smp kernel installed on a smp FC3 machine? jim-j Fedora 2 03-12-2006 08:06 AM


All times are GMT -5. The time now is 06:15 PM.

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
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration