====== LATENCY_BUDGET QoS Parameter  ======
[[ddsf:public:guidebook:06_append:02_quality_of_service:start|return to the Quality of Service (QoS) Parameters ]]


The [[ddsf:public:guidebook:06_append:glossary:l:latency_budget_qos|LATENCY_BUDGET]] policy provides a means for the application to indicate to the [[ddsf:public:guidebook:06_append:glossary:m:midware|middleware]] the “urgency” of the data-communication. By having a non-zero ''duration'' the Service can optimize its internal operation.

This policy is considered a hint. There is no specified mechanism as to how the service should take advantage of this hint.

The value offered is considered compatible with the value requested if and only if the inequality “offered ''duration <='' requested ''duration''” evaluates to ''TRUE''.

Source: [[https://www.omg.org/spec/DDS/1.4/PDF | DDS 1.4 Spec]]

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