Item | Description | Evaluation |
|---|---|---|
Available memory capacity | Allows the memory usage status to be ascertained and compared. | It can be used to ascertain the deviation and peaks of available memory capacity. If the amount of available memory intermittently approaches the value of the kernel parameter "lotsfree" (unit: KB), insufficient memory may be causing a bottleneck and performance problems are either occurring now or they may occur in the future. Warning level: Available memory capacity < lotsfree |
Number of swap-in/swap-out operations | Allows the occurrence of swapping operations to be ascertained and compared. | When only swap-in operations are occurring A temporary shortage of memory has caused swapped-out processes to be swapped in. This does not indicate a problem. When only swap-out operations are occurring A temporary shortage of memory has caused an unnecessary process to be swapped out. This does not indicate a problem. This kind of problem occurs when a large number of processes are created temporarily. When both swap-in and swap-out operations occur In current versions of UNIX, it is normal for no swapping to occur. If both swap-in and swap-out operations occur, it is likely that the system is suffering from a serious memory shortage and it will be necessary to install more memory. Note This information is displayed when a Solaris server is analyzed and reported. |
