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

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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

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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
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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 13.1 64 bit
Posts: 324

Rep: Reputation: 32
Thanks for that post - I have always stopped this from running


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

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