Technologies for controlling jitter at network packet egress

One or more non-transitory machine-readable storage media comprising a plurality of instructions stored thereon that, in response to being executed, cause a source computing device to:

• receive, by a network interface controller (NIC) of the source computing device, a network packet that is to be scheduled for transmission to another computing device;
• determine a switch time delta as a difference between a present switch time and a previously captured switch time, wherein the previously captured switch time indicates a time at which a traffic class queue from which the received network packet has been received was last updated;
• determine a host scheduler time delta as a difference between a host scheduler timestamp associated with the received network packet and a previously captured host scheduler timestamp, wherein the previously captured switch time indicates a time at which a most recently transmitted network packet was transmitted;
• determine an amount of previously captured tokens present in a token bucket, wherein each token is indicative of a predefined amount of elapsed time;
• determine whether there are a sufficient number of tokens available in the token bucket to transmit the received network packet as a function of (i) the switch time delta, (ii) the host scheduler time delta, and (iii) the amount of previously captured tokens present in the token bucket;
• and
• schedule, in response to a determination that there are sufficient tokens in the token bucket, the received network packet for transmission to the another computing device.