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From: ronkhu <ronkhu@ntsp.nec.co.jp>
To: linux-c-programming@vger.kernel.org
Subject: Re: help on memory problem
Date: Wed, 08 Oct 2003 15:26:48 +0800	[thread overview]
Message-ID: <3F83BC38.2080508@hq.ntsp.nec.co.jp> (raw)
In-Reply-To: 31E38B53D182D51195FA00508BE3A33402CD20A5@zwnbc004.cala.nortel.com

How about the clean up for the data structures that have been allocated?
can u send us some code snippet....

-Ron

Sandro Dangui wrote:

>Do you have recursive calls?
>If you alloc all memory you need in the beginning, then the only problem
>that I can figure is that you have an infinite recursive call... or a loop
>between calls. It may be causing a stack overflow.
>
>
>-----Original Message-----
>From: qhwang [mailto:qhwang@ieeta.pt] 
>Sent: terça-feira, 7 de outubro de 2003 19:43
>To: linux-c-programming@vger.kernel.org
>Subject: help on memory problem
>
>
>Hi there,
>
>Can anyone help me to get out of the mess, please? I am writing a program
>which tries to detect faces inside an image. For further comparison, now I
>use the "brutal force search" strategy which means there is a  window (here
>32x32) scanning the input image (e.g., 160x120) pixel by pixel.  The problem
>is, this "brutal forace search" uses quite a lot memory and it's always
>killed by the system after running a while. At first I think there are some
>memory leaks but I could not find any when I set the macro MALLOC_CHECK_=1.
>I also modify the code to make sure all the data structure are only
>allocated once, e.g., in the main program, but the problem is still there.
>When I use "top" to monitor the memory infor when the program is running and
>find that the option "SIZE" reaches more than 250 MB and "RSS" reaches 40
>MB. My program is only about 110 KB. The memory of my computer is only 64 MB
>but with my laptop (256 MB) the problem is same. Can anybody give me some
>pointers about it?
>
>Many thanks.
>
>QingHua
>
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>  
>



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  reply	other threads:[~2003-10-08  7:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-07 22:57 help on memory problem Sandro Dangui
2003-10-08  7:26 ` ronkhu [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-10-07 22:43 qhwang

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