Re: Free phys. memory estimate.

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Mikkel L. Ellertson wrote:
Michael Green wrote:
How one can tell how much precisely physical memory is free on a given system.

I mean if I run:
# free -m -t
             total       used       free     shared    buffers     cached
Mem:          2025       1880        145          0         40         87
-/+ buffers/cache:       1752        273
Swap:         4109       1723       2386
Total:        6135       3603       2532

Looking at the table above I might conclude that 145M is all that's
left. but apparently this is not so, because a big chunk of RAM is
used for disk cache and can be quickly released/recovered should a
portion/all of that memory requested by a malloc.

I'm trying to fugure out how much physical memory the system has
available at any given time. How can this be calculated, using what
If you run 'top' in a command line, you get a value that's updated every few seconds. Type 'q' to stop it.


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