Techniques and mechanisms to dynamically prioritize communication of a data flow based on an indication of a user's interest in a particular task. In an embodiment, data flows correspond to different respective tasks that are executed with a host operating system. An output of a human interface device indicates whether, at a particular time, a user of a computer device is interested in one particular task over another task. Where greater user interest in a first task is indicated, a first packet type corresponding to the first task is assigned a relatively high priority, as compared to a second packet type which corresponds to a second task. Based on the priority, a resource of the network interface is selectively made available (or prevented from being made available) for the communication of a given packet. In another embodiment, the resource includes a queue of the network interface.