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Date:	Sat, 19 May 2007 23:03:56 -0400
From:	Jeff Garzik <>
To:	Komuro <>
Subject: Re: [SMP BUG]  [clockevents: i386 drivers patch]  introduces  irqbalance-does-not-work-properly

Komuro wrote:
> [clockevents: i386 drivers patch] introduces
>   irqbalance-does-not-work-properly problem.
> (The irq is not distributed to two Core
>   ,most of the irq is distributed to CPU1)
>  Mr. Thomas Gleixner,
>  any idea to fix this problem?

Do you mean userspace irqbalance daemon?

It might need to be modified to work properly with a new and unusual 
event source.

Also, for some irq events, it may be good to send most interrupts to one 
core/CPU.  That enhances caching effects, among other benefits.  Again, 
this is highly dependent on the event source, I'm not saying that is the 
case here.



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