SMC_NAME_DATA_CACHE_MISS

Description

Reports the number of times that a page read was satisfied from disk rather than from a particular data cache.

Version compatibility

11.0 and later

Data item type

Result

Server level

Required keys

DATA_CACHE_ID

Optional keys

None

Statistic types and datatypes

VALUE_ SAMPLE	VALUE_ SESSION	RATE_ SAMPLE	RATE_ SESSION	AVG_ SAMPLE	AVG_ SESSION
LONG	LONG	DOUBLE	DOUBLE

SMC_NAME_DATA_CACHE_MISS includes failed attempts to locate pages in the data caches during page allocation. Therefore, the number of physical page reads reported may be overstated. If this occurs, the percentage of data cache misses reported by SMC_NAME_DATA_CACHE_HIT_PCT is understated.