Re: [lwip-users] httpd slow response

[Kieran Mansley]

On Fri, 2009-04-24 at 10:06 -0500, Rick Culver wrote:
> Bill,
> As we suspected based on this information, setting the TF_NODELAY flag
> in the accept callback did not make a difference.  Apparently the
> problem is somewhere else in the stack but not sure where.  I tried
> both MSIE and FoxFire browsers, same results.  I just can't figure out
> why there is so much delay between the http_sent() functions.  It
> appears that this is somehow related to the lwip either not sending
> the tcp_write()/tcp_output() immediately or not processing the
> response packets quickly (or maybe a combination of both).  At any
> rate it appears that httpd module can only serve up one chunk of the
> file about every 200msec.  If you think of anything else please let me
> know.

A copy of your lwipopts.h and a packet capture of the slow transfer can
often be illuminating in cases like this.

Kieran