Hi,
I need some help.
During developing lwip based firmware (without RTOS) I met problem with
big image slow downloading speed. This problem is not new one, I saw many
topics related to this issue, but all mentioned solutions seem not working
on 1.3.2 version. So question is how to send more segments packets without
waiting for ack. I have tried many ways to solve this problem but still no
success. Changing memory settings allows to send bigger packets but this
helps a little.
Thanks for any help,
Peter Pavlov
Wireshark log:
16230 20802.761850 192.168.0.31 192.168.0.32 TCP
54 53584 > http [ACK] Seq=356 Ack=103522 Win=65392 Len=0
16231 20802.771584 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16232 20802.771586 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16233 20802.971032 192.168.0.31 192.168.0.32 TCP
54 53584 > http [ACK] Seq=356 Ack=104546 Win=65392 Len=0
16234 20802.979820 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16235 20802.979822 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16236 20803.171028 192.168.0.31 192.168.0.32 TCP
54 53584 > http [ACK] Seq=356 Ack=105570 Win=65392 Len=0
16237 20803.179816 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16238 20803.179818 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16239 20803.261506 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16240 20803.261508 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16241 20803.261743 192.168.0.31 192.168.0.32 TCP
54 53584 > http [ACK] Seq=356 Ack=107618 Win=65392 Len=0
16242 20803.271586 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16243 20803.271588 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16244 20803.471049 192.168.0.31 192.168.0.32 TCP
54 53584 > http [ACK] Seq=356 Ack=108642 Win=65392 Len=0
16245 20803.479822 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16246 20803.479824 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16247 20803.680030 192.168.0.31 192.168.0.32 TCP
54 53584 > http [ACK] Seq=356 Ack=109666 Win=65392 Len=0
16248 20803.688831 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16249 20803.688833 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16250 20803.761501 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
16251 20803.761505 192.168.0.32 192.168.0.31 TCP
566 [TCP segment of a reassembled PDU]
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