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回复 1# duoduojl
2.4内核(struct napi出现之前),百兆网卡驱动eepro100,为了适应大流量的冲击,修改成了napi的模式。但是遇到了一个问题,就是收发一段时间后网卡停止了活动(既不收也不发),这个问题曾经有人在LKML上问过:
i tested the system with smartbits. when the frame size is 64bytes, in the beginning the system can receive and transmit packets. but after a while, the network card would not receive and transmit packets any more.
then with frame size bigger than 128bytes, it worked well. the throughput was improved. (but sometimes it also has some problem just like 64bytes frames)
各位大牛,有人研究过或者遇到过这个问题么
1. dmesg
Check if there are any kernel complain
2. use kgtp follow some critical area of network stack
3. systemstap maybe another choice for debug kernel stack
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