SAP ABAP Table TST04MEM (INFORMIX DB Monitor: Shared Memory Monitor Descriptions) is using

• Data Element (21)

#	Object Type	Object Name	Object Description	Note
1	Data Element	BTRADATA	Data pages read ahead through leaf
2	Data Element	BTRAIDX	Leaf read aheads through parent
3	Data Element	BUFFERS	Number of regular shared memory buffers
4	Data Element	BUFREADSI	Number of reads from shared memory buffer
5	Data Element	BUFWRITES	Number of writes to shared memory buffer
6	Data Element	DIRTY_BUFF	Number of dirty buffers
7	Data Element	DPRA	Data page read aheads
8	Data Element	DSKREADS	Actual reads from disk
9	Data Element	DSKWRITES	Actual number of writes to disk
10	Data Element	LRUMAXDIRT	When to begin cleaning LRU queues
11	Data Element	LRUMINDIRT	When to stop cleaning LRU queues
12	Data Element	LRUS	Number of LRU queues
13	Data Element	RA_PAGES	Number of pages to read ahead for sequential or index scans
14	Data Element	RA_THRESH	Read ahead page trigger
15	Data Element	RA_USED	Number of used pages from read ahead data
16	Data Element	READ_AHEAD	Read ahead effectiveness
17	Data Element	READ_QUALI	Percentage of successful reads from shared memory
18	Data Element	SHMTOTAL	Total amount of virtual shared memory
19	Data Element	SHMVIRTSIZ	Initial size of virtual shared memory segment
20	Data Element	WRITE_QUAL	Percentage of successful writes for shared memory buffer
21	Data Element	XMEM_ALLOC	Amount of additional virtual shared memory