[lwip-users] Re: [lwip] How to Optimize LwIP?

[Conny Öhult]

Or you take sneak peek the minimal project in the latest development code 
from the CVS as opposed to the unixsim proj.
No sys arch, single thread and raw api and a simple application. I have 
actually tested this configuration with the raw api web server, 
SLIP/Ethernet and another simpler app. Works very well.

http://www.sics.se/~adam/lwip/download/?f=lwip-cvs.tar.gz

/Conny

At 13:11 2002-04-19 +0500, you wrote:
>Well if you can sacrifice on number of sockets and higer thruput ,it is
>possible to do it in that memory constraint.
>See lwipopts.h and keep the figures as low as possible . Following are the
>tunable parameters
>
>#define MEM_SIZE                1000
>#define MEMP_NUM_PBUF           40
>#define MEMP_NUM_UDP_PCB        1
>#define MEMP_NUM_TCP_PCB        1
>#define MEMP_NUM_TCP_PCB_LISTEN  1
>#define MEMP_NUM_TCP_SEG       10
>#define MEMP_NUM_SYS_TIMEOUT    5
>#define PBUF_POOL_SIZE          5
>#define PBUF_POOL_BUFSIZE       1500
>#define TCP_SND_BUF             2480
>#define TCP_WND                 2480
>#define ARP_TABLE_SIZE 2
>
>
>
>----- Original Message -----
>From: Imran Mansuri <address@hidden>
>To: <address@hidden>
>Sent: Friday, April 19, 2002 11:13 AM
>Subject: [lwip] How to Optimize LwIP?
>
>
> > Hello friends
> >
> > I could run LwIP over DOS but my actually project is
> > to run it over some microcontroller without any
> > Operating System.
> >
> > Now as u all know resource constraints for
> > microcontroller, can anyone suggests me how to start
> > optimizing LwiP? What variables/parameteres should I
> > take in to account in order to limit the stack to 64K
> > code + 64 K memory. Well this is the maximum memory
> > available for old 8051 Micro-controller. Is this much
> > optimization is possible? or I have to turn to high
> > end microcontrollers?
> >
> > Awaitng for ur replies
> > Imran
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Yahoo! Tax Center - online filing with TurboTax
> > http://taxes.yahoo.com/
> > [This message was sent through the lwip discussion list.]
>
>[This message was sent through the lwip discussion list.]

-------------------------------------------------------------------------
Conny Öhult
Luleå University of Technology
Department of Computer Science and Electrical Engineering
SE-971 87 LULEÅ, Sweden
Phone: 0920-49 1577 (Intl: +46 920 49 1577)
Fax: 0920-49 2191 (Intl: +46 920 49 2191)
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