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Old 10-02-2007, 05:41 PM   #1
lambchops468
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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
google01103
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these might answer your question https://bugzilla.novell.com/show_bug.cgi?id=244916, https://bugzilla.novell.com/show_bug.cgi?id=223045.

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
quit."
 
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Old 10-02-2007, 08:54 PM   #3
lambchops468
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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
dth1
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Thanks for that post - I have always stopped this from running
 
  


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