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Re: [lwip-users] memp_memory and ram_heap
From: |
Simon Goldschmidt |
Subject: |
Re: [lwip-users] memp_memory and ram_heap |
Date: |
Thu, 05 Jan 2012 10:53:57 +0100 |
narke <address@hidden> wrote:
> I found memp_memory and ram_heap are two most biggest ram variables in
> my setup, they are now each 5.5k bytes around. These two variables
> are similar in size and their sizes changes when I change the MEM_SIZE
> constant.
>
> I want to ask, is this normal? And, what's the relationship between
> these two variable?
No, not normal. Normally, MEM_SIZE should only influence the heap (ram_heap),
not the pools (memp_memory). ram_heap should be about the size of MEM_SIZE (a
little more, say 16 bytes or so). memp_memory is made up of many configuration
options (and depending on target pointer size, etc) and its size cannot be
easily calculated.
Simon
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