Cache Statistics

The Cache Statistics (meta_v_c_cache_stat) view allows you to see information about some of the caches used in the framework. Each record (line) represents a different cache and its information.

  • Caches are used to store commonly accessed information so that they can be accessed at a smaller cost after the initial request.

  • Caches are used throughout the framework to improve performance.

The following list defines every field available in the cache statistics (meta_v_c_cache_stat) table in alphabetical order:

  • Current Cache Size - this field is not maintainable. The number of records currently stored in this cache.

  • Hit Count - this field is not maintainable. The number of requests made to this cache where the requested record was already stored in the cache.

  • Hit Rate - this field is not maintainable. The percentage of requests that were hits (where the record was already stored in the cache).

    • In a healthy cache, this percentage should be very high. A low percentage means that many of the requests were one-time hits, which would lower the usefulness of the cache.

  • Maximum Cache Size - this field is not maintainable. The maximum number of elements that can be stored into the cache.

  • Miss Count - this field is not maintainable. The number of requests made to the cache where the record was not in the cache and had to be retrieved.

    • This operation can be costly.

  • Miss Rate - this field is not maintainable. The percentage of requests that were misses.

    • In a healthy cache, this percentage should be low.

  • Request Count - this field is not maintainable. The number of requests made to this cache.

  • Resource Name - this field is not maintainable. The resource name and description associated with a given cache. Value retrieved from the resources table

For the functionality of each action (i.e. button) available on this view, refer to the About the Actions topic.