Displaying Buffer and Memory Resources in Transaction ST02

Use

On the initial screen of transaction ST02 (Tune Summary) you can see the following overview of the SAP Memory under the Buffer overview.

`SAP Memory`	`Current Use`	`Max. Use`	`In Memory`
	`[%]`	`[kb]`	`[kb]`
`Paging area`	`0,01`	`16`	`72`
`Extended memory`	`4,03`	`6.144`	`22.528`
`Heap memory`	`0`	`0`	`0`

This is a snapshot of the current (percentage and absolute values in kilobytes) and the maximum memory usage of the various SAP memory types.

Procedure

You can determine from the Extended Memory row that the extended memory is sufficiently large. The value [Max. use] is, in this example, noticeably smaller than the created memory area [In memory]. If both values are identical, you must increase the extended memory.