Hello,
> Here's a summary of the free command output at 0 hours and 46 hours
> into the test:
>
> used free buf cached
> 0 hrs 15568 13304 788 8788
> 46hrs 25004 3568 2500 10112
>
> You'll notice that buffer/cache allocations increase, but not nearly
> enough to account for the decrease in free memory.
>
> ps listings taken at 0 and 46 hours show no appreciable change to the
> memory allocations for processes.
"The short answer is that you should never worry about the amount of
free memory on Linux. The kernel attempts to keep this slightly above
zero by keeping the cache as large as possible. This is a feature not
a bug."
Why doesn't free memory go down
http://sourcefrog.net/weblog/software/linux-kernel/free-mem.html
//Eddie
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