set-irq-affinity

#!/bin/sh /etc/rc.common

START=99

get_irq() {
	local name="$1"
	grep -m 1 "$name" /proc/interrupts | cut -d: -f1 | sed 's, *,,'
}

set_irq_affinity() {
	local name="$1"
	local val="$2"
	local irq="$(get_irq "$name")"
	[ -n "$irq" ] || return
	echo "$val" > "/proc/irq/$irq/smp_affinity"
}

start() {
	set_irq_affinity ehci_hcd 2
	set_irq_affinity xhci_hcd 2
	set_irq_affinity sata 2
}