Re: irqbalance mandatory on SMP kernels?

[Martin J. Bligh]

Robert M. Stockmann wrote:
> Hi,
>
> I noticed that the latest editions of RedHat EL 4.3 and direct
> descendants today need a program called irqbalance to activate
> true SMP IRQ load balancing for your machine's hardware.
>
> If one boots a SMP kernel (2.4.xx or 2.6.xx) kernel on a machine
> which either has 2 or more physical CPU's (also dual-core CPU's) 
> , and one does not start up the irqbalance util from the
> kernel-utils package ( see e.g. 

There is an in-kernel IRQ balancer. Redhat just choose to turn it
off, and do it in userspace instead. You can re-enable it if you
compile your own kernel.

M.
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