Tag : hyperthreading

Why is irqbalance not balancing?

Posted March 28, 2015 by Steve Snyder & filed under CentOS Comments: 2

Tags: cores, hyperthreading

I am running irqbalance with default configuration on an Atom 330 machine.This CPU has 2 physical cores + 2 SMT (aka Hyperthreading) cores.As shown below the interrupt for the eth0 device is always on CPUs 0 and 1, with CPUs 2 and 3 left idle.But why?Ma..

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