Review your favorite Linux distribution.
Go Back > Forums > Linux Forums > Linux - Distributions > SUSE / openSUSE
User Name
SUSE / openSUSE This Forum is for the discussion of Suse Linux.


  Search this Thread
Old 10-02-2007, 05:41 PM   #1
Registered: Mar 2007
Location: New Jersey, USA
Distribution: Archlinux
Posts: 165

Rep: Reputation: 30
Does IRQ balance matter on dual core?

I have a T7300 Core 2 Duo dual core processor

irq_balance lists as a skipped service (maybe it loads then quits?)

does irq_balance make much of a difference in performace?
Old 10-02-2007, 06:58 PM   #2
Registered: May 2006
Distribution: Suse 10.2 x64
Posts: 247

Rep: Reputation: 31
these might answer your question,

The 2nd one states:

"you have a single socket system where the cores share the L2 cache.
For these systems dynamic irq balancing isn't really the right
approach; they don't really have need. What irqbalance 0.55 will do is
set up a static spread of the interrupts over the 2 cores, and then
exit to avoid wasting CPU cycles. This should provide the best
possible behavior on your system..."

So it seems OK to run the service also for dual core single socket systems, as
all it will do ( and does for me ) is setting up a statistical distribution and
1 members found this post helpful.
Old 10-02-2007, 08:54 PM   #3
Registered: Mar 2007
Location: New Jersey, USA
Distribution: Archlinux
Posts: 165

Original Poster
Rep: Reputation: 30
ah, thanks. alright, so even if it shows skipped it really wasn't.

ok, i don't care anymore, because i don't think the performance will increase much anyway
Old 10-03-2007, 04:10 AM   #4
Registered: Oct 2004
Location: Stoney Stanton - England
Distribution: openSuse tumbleweed
Posts: 329

Rep: Reputation: 33
Thanks for that post - I have always stopped this from running


balance, balancer, cpu, dual, interrupt, irq, suse

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
Kernel Panic on Intel Core 2 Duo E6700 Dual Core Processor nwongrat Linux - Hardware 2 01-08-2008 10:13 PM
Does L2 Cache matter with Dual-Core for speed? tktim Linux - Hardware 1 11-24-2006 12:20 AM
Fedora Core 4 x86_64 on a Shuttle XPC SN25P with an AMD 64 X2 (Dual core) gwiesenekker Linux - Hardware 4 12-06-2005 11:53 PM
Fedora Core 3 disables IRQ #10 which is used by NIC tjf1 Linux - Hardware 1 01-12-2005 05:19 PM
installing Fedora Core 2- disabling IRQ #10 loop message Sardaukar Linux - Newbie 1 06-05-2004 06:55 PM > Forums > Linux Forums > Linux - Distributions > SUSE / openSUSE

All times are GMT -5. The time now is 12:56 AM.

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