Messages in this thread | | | Date | Mon, 17 Apr 2006 07:31:53 -0700 | From | "Martin J. Bligh" <> | Subject | Re: irqbalance mandatory on SMP kernels? |
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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.
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