Re: [lwip-users] How to calculate the memory size used by lwIP?

[PHAM ANH THIEN]

as i mentioned in the previous email lwip got 2 main type memorys, one is ram_heap which defined in mem.c and the size of it is MEM_SIZE, another one is memp_memory which defined in memp.c and size of it is total of size ((num) * (MEMP_SIZE + MEMP_ALIGN_SIZE(size)). 

It is easy to understand ram_heap variable, but  memp_memory more difficult to understand if your compiler got option to make preprocessor file let turn on it to make memp.i preprocessor file then you understand memp_memory variable.

hope some lines can help you.

On Tue, Feb 2, 2010 at 7:27 PM, jinwei younger <address@hidden> wrote:

Hi,

Thanks a lot for PHAM ANH THIEN and Kieran's reply. 

To Kieran, do you mean that when my system is running, use the function stats_display( ) to monitor how much of memory?

Is there a way to calculate MEM_SIZE by the parameters MEMP_NUM_PBUF, MEMP_NUM_RAW_PCB, MEMP_NUM_NETCONN and so on? I think the MEM_SIZE depends on the parameters defined in lwipopt.h.

Thanks.

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