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Re: [lwip-users] Performance results
From: |
Jani Monoses |
Subject: |
Re: [lwip-users] Performance results |
Date: |
Fri, 30 Jan 2004 10:30:41 +0200 |
Hi Leon
> Do you know how the memory footprint compare between the eCos
> BSD derived stack and lwIP?
Well lwip is about 1/3 both ROM and RAM wise, obviously the RAM size can
be configured up or down... The BSD stack deafult settings need about
250K RAM IIRC, and the code is about the same size
better yet here's size output on nc_test_slave from ecos net tests build
with default ecos/tcp and with lwip
freebsd
text data bss dec hex
259080 4940 410092 674112 a4940
lwip
text data bss dec hex
109472 1232 221092 331796 51014
this is a pretty large app but the differences in text and bss size are
the diffs between the two stacks.
lwip is the only way of getting ecos/tcp on boards with 128 or 256 K of
RAM such as at91 family based on arm7tdmi
Jani