Re: meminfo

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Erik Mouw wrote:

> On Wed, Jan 09, 2002 at 06:44:58PM +0200, Hilik Stein wrote:
>>i have a working system here, where i see that the amount of free memory
>>keeps dropping constantly, and never goes back up, i understood that it
>>could be that the memory was going into some memory caches, can someone
>>please explain how i can locate the missing memory ?
>>
> 
> /proc/meminfo shows you (in Buffers and Cached), and you can also use
> the "free" utility.

This is something even I am curious about given a linux system, what is 
cached memory, buffer cache, network data cache? Also, over a few days 
of running if the free memory reduces to a few MB (on a 256 MB system) 
and the cached increases and then this state stays, what does this 
implies kernel and mm behaviour is concerned?

Thanks
Amit

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