| 摘要 |
<p>Interrupts are issued from a communication device, such as a network interface, to a host processor in response to the transfer of packets to the host. An interrupt is generated in response to the transfer of a packet only if a predetermined period of time has elapsed or a predetermined number of packets have been transferred since a previous interrupt was processed. A time counter may be used to track the passage of time; a packet counter may be used to track the number of packets transferred. After the processing of one interrupt by the host processor the time and packet counters are reset to threshold values and thereafter begin decrementing toward a final time count and final packet count. The threshold and/or final time and packet counts may be adjusted to ensure that interrupts are generated often enough to avoid a negative impact on the processing of network traffic.</p> |
