[gllug] Memory Available

[Andrew Halliwell]

And verily, didst Steve Nelson announce to the hordes:
> # free
>              total       used       free     shared    buffers     cached
> Mem:       2055472    1908656     146816          0     144056    1616668
> -/+ buffers/cache:     147932    1907540
> Swap:      2097112      13212    2083900
> 
> How is this working under Linux?  Is this memory available? If so why
> is it not reported as free?

It is free.
> -/+ buffers/cache:     147932    1907540
see that line? 1907540 is actual free memory.
cache and buffers are used to the fullest by a system when the memory has no
other use. You paid for the memory so why NOT use it to speed up your
system's disk access by buffering/caching files?

If some process suddenly requires the ram, the caches and buffers are freed
to release it on demand.
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