A system for timely and uniform real-time data packet transmission by a computing device (50, 60, 70), the system comprising: a first shared memory buffer configured to store a plurality of data packets generated by at least one software application operating in a user mode of an operating system of the computing device (50, 60, 70); a second shared memory buffer that includes an array configured to store a plurality of time slots for the data packet transmission; a kernel module operating in a kernel mode of the operating system of the computing device (50, 60, 70), the kernel model including: a packet group generator configured to generate at least one packet group for the first shared memory buffer, a data packet transmission scheduler configured to poll the second shared memory buffer to access a plurality of packet identifiers associated with the plurality of data packets generated by the at least one software application, the plurality of packet identifiers being associated with the plurality of time slots for the data packet transmission, respectively, a data packet accessor configured to access each of the plurality of data packets from the first shared memory buffer based on the respective packet identifier and corresponding time slot, and a data packet transmission controller coupled to a driver of a network interface controller and configured to control the driver to transmit each of the plurality of data packets via the network interface controller over the network based on the corresponding time slot. a first shared memory buffer configured to store a plurality of data packets generated by at least one software application operating in a user mode of an operating system of the computing device (50, 60, 70); a second shared memory buffer that includes an array configured to store a plurality of time slots for the data packet transmission; a kernel module operating in a kernel mode of the operating system of the computing device (50, 60, 70), the kernel model including: a packet group generator configured to generate at least one packet group for the first shared memory buffer, a data packet transmission scheduler configured to poll the second shared memory buffer to access a plurality of packet identifiers associated with the plurality of data packets generated by the at least one software application, the plurality of packet identifiers being associated with the plurality of time slots for the data packet transmission, respectively, a data packet accessor configured to access each of the plurality of data packets from the first shared memory buffer based on the respective packet identifier and corresponding time slot, and a data packet transmission controller coupled to a driver of a network interface controller and configured to control the driver to transmit each of the plurality of data packets via the network interface controller over the network based on the corresponding time slot. a packet group generator configured to generate at least one packet group for the first shared memory buffer, a data packet transmission scheduler configured to poll the second shared memory buffer to access a plurality of packet identifiers associated with the plurality of data packets generated by the at least one software application, the plurality of packet identifiers being associated with the plurality of time slots for the data packet transmission, respectively, a data packet accessor configured to access each of the plurality of data packets from the first shared memory buffer based on the respective packet identifier and corresponding time slot, and a data packet transmission controller coupled to a driver of a network interface controller and configured to control the driver to transmit each of the plurality of data packets via the network interface controller over the network based on the corresponding time slot.