GH#42468 updated the globallyDisableIrqLoadBalancing function defintion

Author: sheriff-rh

modules/cnf-use-device-interrupt-processing-for-isolated-cpus.adoc

@@ -10,7 +10,7 @@ When you upgrade the Performance Addon Operator performance profile custom resou
 
 [NOTE]
 ====
-When `globallyDisableIrqLoadBalancing` is set to `true`, device interrupts are processed across all CPUs as long as they don't belong to a guaranteed pod.
+`globallyDisableIrqLoadBalancing` toggles whether IRQ load balancing will be disabled for the Isolated CPU set. When the option is set to `true` it disables IRQ load balancing for the Isolated CPU set. Setting the option to `false` allows the IRQs to be balanced across all CPUs.
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 [id="pao_supported_api_versions_{context}"]