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realtime:documentation:howto:tools:cpu_shielding

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CPU shielding using /proc and /dev/cpuset

Interrupt shielding

Kernel Space

In order to shield CPUs from individual interrupts being serviced on them you have to make sure that the following kernel configuration parameter is set:

  • CONFIG_IRQBALANCE

User Space

Then make sure that the interrupts are not automatically balanced by the irqbalance daemon. This daemon is started from the irqbalance init script. To disable once do:

  $ /etc/init.d/irqbalance stop
realtime/documentation/howto/tools/cpu_shielding.1494286005.txt.gz · Last modified: 2017/05/08 23:26 by srodrig1