A transmit packet processing system includes a memory, one or more processors in communication with the memory, and an operating system. The one or more processors execute a packet processing thread and a rearming thread. The OS maps a receive ring into a first memory of an application and maps the first memory into kernel memory. The packet processing thread reads a receive ring. The packet processing thread retrieves the packet information within the receive ring. The packet processing thread processes the packets. The packet processing thread notifies the rearming thread that a batch size limit is reached and the rearming thread requests the OS to rearm the plurality of descriptors. The OS receives the request and initializes the first descriptor of the plurality of descriptors.