How do i see the actual memory usage?

[Søren Neigaard]

Thanks for then info, so that means than in this case i have about 784MB 
free memory, that would make more sense :)

/Søren

Andy Green wrote:
> Søren Neigaard wrote:
> 
>>Ok, this gives me:
>>
>>---------
>>             total       used       free     shared    buffers     cached
>>Mem:       1033684    1008540      25144          0     210324     548616
>>-/+ buffers/cache:     249600     784084
>>Swap:      3156680        696    3155984
>>---------
>>
>>Hm but..? Does this mean my system, running almost nothing, uses almost
>>all my physical memory?
> 
> 
> Top and free are showing the same information.  The answer to your
> question is that "buffers" and "cached" reflect temporary usage of
> 'spare' memory.  A rough idea of how much memory is unallocated is
> 
> free + buffers + cached
> 
> - free is just sitting there totally unused
> 
> - buffers is something to do with storage space for data going to a
> block device (?) anyway it is temporary allocation that can be kicked to
> free up the memory
> 
> - cached is recently seen data from a block device that is kept around
> in case it is needed again... it's totally lose-able to get the memory
> free again if it is needed for something else.
> 
> -Andy
> 
> 

-- 
Med venlig hilsen/Best regards
Søren Neigaard
System Architect
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