How is Memory Utilization calculated for AIX server?
Default Calculation:
By default, Applications Manager calculates Memory Utilization for AIX servers using the formula:
Memory Utilization (%) = (Total Memory - Free Memory) / Total Memory
Here, Free Memory = Free + Buffers + Cached
However, if the key am.servers.aix.physicalmem.memory.inuse is set to true in the am_globalconfig table, an alternate calculation method is used, based on the inuse memory value obtained from the svmon -G command output.
Sample svmon -G output:
When am.servers.aix.physicalmem.memory.inuse is set to true, Applications Manager uses:
- Total Memory = Value under size in the memory row (e.g., 1957888)
- Used Memory = Value under inuse in the memory row (e.g., 1213774)
Hence, the revised calculation becomes: Memory Utilization (%) = (Used Memory / Total Memory) * 100
Example: (1213774 / 1957888) * 100 ≈ 61.99%New to ADSelfService Plus?
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