Linux Common OIDs
| memTotalSwap | 1.3.6.1.4.1.2021.4.3 |
| memAvailSwap | 1.3.6.1.4.1.2021.4.4 |
| memTotalReal | 1.3.6.1.4.1.2021.4.5 |
| memAvailReal | 1.3.6.1.4.1.2021.4.6 |
| memTotalFree | 1.3.6.1.4.1.2021.4.11 |
| memMinimumSwap | 1.3.6.1.4.1.2021.4.12 |
| memShared | 1.3.6.1.4.1.2021.4.13 |
| memTotalFree | 1.3.6.1.4.1.2021.4.14 |
| memCached | 1.3.6.1.4.1.2021.4.15 |
Formulas for Memory Utilization:
a) Memory Utilized = ( ( Total - Free Memory ) / Total * 100 ) (Value presented as %)
* Formula added on these UNDPs
Note: Some values could be negative, and will require to review how are presented on the SNMPWalk
b) Other systems/distributions could use:
Free Memory = ( TotalFree - Used + Buffered + Cached ) (Value needed for next formula)
Memory Utilized = ( (TotalFree - Free Memory) / TotalFree * 100 ) (Value presented as %)
Compare your values on SNMPWalk vs the values provided on memory information by your Linux distro.
