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==Motivation==
A straightforward method of implementing a network driver is to interrupt the kernel by issuing an [[interrupt request]] (IRQ) for each and every incoming packet. However, servicing IRQs is costly in terms of processor resources and time. Therefore, the straightforward implementation can be very inefficient in high-speed networks, constantly interrupting the kernel with the thousands of packets per second. Overall performance of the system as well as network throughput can suffer as a result.
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