January 2012
Intermediate to advanced
542 pages
11h 28m
English
Displays statistics on library cache activity.
The most relevant view fields are:
NAMESPACE: The library cache namespaceGETS: The number of times a lock was requested for objects in the namespaceGETHITRATIO: The number of times the object's handle was found in memoryPINS: The number of times a PIN was requested for objects in the namespacePINHITRATIO: The number of times the object's metadata were found in memoryRELOADS: Any PIN of the object, following the first after object creation, which requires loading the object from diskINVALIDATIONS: The number of times objects in the namespace were marked invalid due to dependent object modifications