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From: | address@hidden |
Subject: | Re: [lwip-users] netconn_write throughput stuck at 1024 bytes |
Date: | Fri, 23 Jan 2009 14:29:57 +0100 |
User-agent: | Thunderbird 2.0.0.19 (Macintosh/20081209) |
Forgot one: DownyTif wrote:
Is TCP_WND only for receiving data? If I only receive small frames in my lwip, do I have to still make it big?
TCP_WND is the receive window announced to the other side with a SYN, but it is also used as a maximum limitation on a transmit window received from the other side. This is to limit memory allocation in the lwIP application. So you still have to set it high when only receiving a little data but sending much.
Simon
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