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Old 01-26-2010, 11:03 PM   #1
Niraj Kulkarni
Registered: May 2008
Posts: 47

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HOW much RAM will be used in uCLinux by Application


My basic system will be working on uCLinux.

There will be few applcations runnig on it.

How will I come to know that my abc application will be using
1. x amount of RAM when executed ( Ofcourse that will depend on how many buffers I allocate in the application , but I cannot sit and count every declaration ).
2. y amuont of Stack bytes will be used while execution.
3. How much STACK should be allocated. ( I understand that for uCLinux application Stack size must be known before hand , how is that possible ?? ).

Is the any IDE which tell this all.

Old 01-27-2010, 12:34 AM   #2
LQ Guru
Registered: Mar 2004
Distribution: SusE 8.2
Posts: 5,863
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There are no easy answers.

There is no "magic IDE" where you can push a button and determine your exactly memory usage.

You're absolutely going to have to do some investigation, make some "educated guesses" - and then schedule enough time for prototyping and testing to determine if those guesses were accurate or not.

This article might help:
Old 01-27-2010, 01:12 AM   #3
Niraj Kulkarni
Registered: May 2008
Posts: 47

Original Poster
Rep: Reputation: 15
Thanks paulsm4,
I have gone through the link you gave.I was very informative.

Can you tell me how much should the stack size to begin with ( or to start with I can take a "educated guess" ).
Will I be able to come to know that my application have died because
1. there is no stack remaining.
2. My process 2 has corrupted my process 1's data in stack or ram.
does the kernel give some notification.( Like in normal Linux I have seen stack dump which SOMETIMES lead to the cause of kernel panic/Segmentaion fault/Stop Application execution).
Niraj Kulkarni.


application, uclinux

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