Re: [lwip-users] Performance results

[Jani Monoses]

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