Global Cache Service Times

The Global Cache Services layer also tracks the various latencies for most of the service times associated with the block transfers. The timing mechanism is well instrumented and provides a wealth of information about the performance of Cache Fusion at the global level. We will be discussing the most important service times in the global cache layer and their significance in performance management of Oracle RAC.

gc current block receive time

Like any other Oracle kernel calls, when one instance makes a request for a resource, the kernel starts a timer to measure the service times. Each individual request is timed from the point when the request is made until it completes. This statistic represents the cumulated end-to-end ...

Get Oracle Database 11g Oracle Real Application Clusters Handbook, 2nd Edition, 2nd Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.