On 11/03/2009 07:16 PM, Subbiah Stalin-XCGF84 wrote:
All,

I'm trying to understand the free memory usage and why it falls below
17G sometimes and what could be causing it. Any pointers would be
appreciated.

r...@prod1 # prtconf
System Configuration:  Sun Microsystems  sun4u
Memory size: 32768 Megabytes

[postg...@prod1 ~]$ vmstat 5 10
  kthr      memory            page            disk          faults
cpu
  r b w   swap  free  re  mf pi po fr de sr 1m 1m 1m m1   in   sy   cs us
sy id
  0 0 0 51713480 21130304 58 185 325 104 104 0 0 23 3 7 1 488 604  573  1
2 97
  0 0 0 51048768 18523456 6 10 0 192 192 0 0 4  0  3  0  527  753  807  2
1 97

Memory used by the OS for caching files is no longer free.
Free memory is wasted memory.
-J

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