RE: [lwip-users] Problems while loading http contens - Email found in subject

[Tamas Somogyi]

Gustl,

Did you try to increase TCP_SND_QUEUELEN? By default it allows to
transfer small amount of data simultaneously, so "large" (10-15kb)
javascript, gif, etc. files will be partially transmitted only. I'm not
sure whether your problem is related to this issue, but it's quick to
check by adjusting queue length according to your file sizes.

Regs,
Tamas
 

-----Original Message-----
From: address@hidden
[mailto:address@hidden On
Behalf Of Bernhard 'Gustl' Bauer
Sent: 02 March 2009 10:06
To: Mailing list for lwIP users
Subject: Re: [lwip-users] Problems while loading http contens - Email
found in subject

Mike Kleshov schrieb:
> 1) I know that Firefox can be configured to limit the number of TCP
> connections. There is an option somewhere in about:config. But this is
> not a nice solution.

No, it isn't. It should not work with Firefox only.

> 2) The maximum number of simultaneous TCP connections is configurable
> in lwipopts.h:
> #define MEMP_NUM_TCP_PCB

opt.h says:
#define MEMP_NUM_TCP_PCB                10

> 
> Perhaps, HTTP persistent connections could also limit the number of
> open connections between the browser and the server, but I am not sure
> about this.

The connection is opened and is reset after the GET ist received. So 
maybe it isn't possible to open two files at once. But couldn't the 
second file be delayed?

Gustl


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