irqbalance FOLLOW_ISOLCPUS option is not working

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Issue

The option FOLLOW_ISOLCPUS for irqbalance, described on Realtime Tuning Guide for Red Hat Enterprise MRG, is not working. Therefore, IRQs are not avoided on CPUs isolated via isolcpus kernel parameter.

Environment

Red Hat Enterprise Linux (RHEL) 6
Red Hat Enterprise Linux (RHEL) 7
Red Hat Enterprise MRG-RT
Package:
- irqbalance

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