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Re: [lwip-users] Lots of RAM
From: |
Frédéric BERNON |
Subject: |
Re: [lwip-users] Lots of RAM |
Date: |
Fri, 7 Sep 2007 11:30:26 +0200 |
up the tcp-transmission. To send or receive a 1 Mbyte
file to/from a pc takes about 10 seconds.
And, I suppose your interface is not a 10Mbps, but a 100 or 1000 ?
Take a look to
http://lists.gnu.org/archive/html/lwip-users/2006-11/msg00007.html // tune
some TCP options (read all the answers)
1. When you change the code in a module, could you
please also make a comment about it in the modules head.
At least the date of change. As it is now there is no
way to tell which module is the latest.
I just did a little test with CVS keywords. This feature is enable on
Savannah CVS. So, perhaps it could be a solution? Developers, your point of
view?
2. Use variable and function names that say a little more
what the variable does or means.
Once a function is released, it's always difficult to change its name or its
parameters list, because it could cause problems if it is an API.
But can you tell us two or three examples of function where the name is not
clear enought (and what should be a better name to your point of view)?
----- Original Message -----
From: "Valdemar" <address@hidden>
To: <address@hidden>
Sent: Friday, September 07, 2007 10:28 AM
Subject: [lwip-users] Lots of RAM
Hi
I am using lwip in an application with an ATMEL
AT91R40008 microcontroller running at 33 MHz.
It seems to work fine, but I would like to speed
up the tcp-transmission. To send or receive a 1 Mbyte
file to/from a pc takes about 10 seconds.
It is possible that my application is to blame, but I
want to make sure I use lwip in the best way.
Suppose I have a lot of RAM:
How should I configure my system for optimum tcp performance?
What should the MEM_POOL_SIZE-s and MEM_POOL_NUM-s be?
I use the latest CVS head code. I don't use the API and
NO_SYS = 1.
And two requests to the nice and clever people who write this code from
a beginner who tries to read and understand it:
1. When you change the code in a module, could you
please also make a comment about it in the modules head.
At least the date of change. As it is now there is no
way to tell which module is the latest.
2. Use variable and function names that say a little more
what the variable does or means.
Thanks for a great product.
Germund Asp
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- [lwip-users] Lots of RAM, Valdemar, 2007/09/07
- Re: [lwip-users] Lots of RAM,
Frédéric BERNON <=
- Re: [lwip-users] Lots of RAM, Jonathan Larmour, 2007/09/07
- Re: [lwip-users] Lots of RAM, Frédéric BERNON, 2007/09/07
- Re: [lwip-users] Lots of RAM, Valdemar, 2007/09/07
- RE: [lwip-users] Lots of RAM, Goldschmidt Simon, 2007/09/07
- Re: [lwip-users] Lots of RAM, Frédéric BERNON, 2007/09/07
- Re: [lwip-users] Lots of RAM, Frédéric BERNON, 2007/09/07
- Re: [lwip-users] Lots of RAM, Valdemar, 2007/09/07
- Re: [lwip-users] Lots of RAM, Jonathan Larmour, 2007/09/07
- Re: [lwip-users] Lots of RAM, Andrew Lentvorski, 2007/09/09
- Re: [lwip-users] Lots of RAM, Timmy Brolin, 2007/09/09