问一下 RT-Thread 0.3.3和0.4.0的LM3S分支的以太网驱动有什么不同，为什么TX速率相差较大

发布于 2011-10-24 11:09:31 浏览：4676 订阅该版

问一下 RT-Thread 0.3.3和0.4.0 RC1的LM3S分支的以太网驱动有什么不同，为什么TX速率相差较大

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RT-Thread 0.3.3，netio测试结果：
NETIO - Network Throughput Benchmark, Version 1.26
(C) 1997-2005 Kai Uwe Rommel

TCP connection established.
Packet size  1k bytes:  920 KByte/s Tx,  5193 Byte/s Rx.
Packet size  2k bytes:  921 KByte/s Tx,  2272 KByte/s Rx.
Packet size  4k bytes:  922 KByte/s Tx,  3620 KByte/s Rx.
Packet size  8k bytes:  922 KByte/s Tx,  3503 KByte/s Rx.
Packet size 16k bytes:  925 KByte/s Tx,  3523 KByte/s Rx.
Packet size 32k bytes:  927 KByte/s Tx,  3494 KByte/s Rx.
Done.

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RT-Thread 0.4.0 RC1，netio测试结果：
NETIO - Network Throughput Benchmark, Version 1.26
(C) 1997-2005 Kai Uwe Rommel

TCP connection established.
Packet size 1k bytes: 3336 KByte/s Tx, 5258 Byte/s Rx.
Packet size 2k bytes: 3336 KByte/s Tx, 2134 KByte/s Rx.
Packet size 4k bytes: 3336 KByte/s Tx, 3085 KByte/s Rx.
Packet size 8k bytes: 3336 KByte/s Tx, 3020 KByte/s Rx.
Packet size 16k bytes: 3336 KByte/s Tx, 3008 KByte/s Rx.
Packet size 32k bytes: 3341 KByte/s Tx, 3011 KByte/s Rx.
Done.