The Palo Alto Networks QoS implementation now supports a new QoS mode called lockless QoS for PA-3400, PA-5410, PA-5420, PA-5430, and PA-5440 firewalls. For firewalls with higher bandwidth QoS requirements, the lockless QoS dedicates cores to the QoS function that improves QoS performance, resulting in improved throughput and latency.
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