1. WebCenter Sites Help
  2. Overview of the CAS Cache Summary Form

42 Overview of the CAS Cache Summary Form

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The CAS Cache Summary form lists the following basic data for each cache (values are estimates):

  • Total Count (total number of cached elements)

  • Memory Store Count (number of cached elements in memory)

  • Disk Store Count (number of cached elements on disk)

  • Cache Hits (number of cached elements retrieved from both memory and disk)

  • In Memory Hits (number of cached elements retrieved from memory)

  • On Disk Hits (number of cached elements retrieved from disk)

  • Cache Misses (number of times elements were not found in the cache)

  • Eviction Count (number of elements evicted from the cache)

  • Average Get Time (average number of milliseconds for retrieving an element)

  • Max Elements In Memory (maximum number of elements allowed in memory)

  • Max Elements On Disk (maximum number of elements allowed on disk)

  • Overflow to Disk (whether elements are written to disk when memory is full)

This form also provides the following options. They should be used with caution, especially on a delivery system, as they can impact the performance of your site.

  • Writing a cache's entire memory store to disk. This option can be particularly useful if WebCenter Sites is not set up to automatically write a cache's memory store to disk before shutting down.

  • Flushing a cache's entire memory and disk stores.

Note:

If legacy page caching is enabled, cached page data is stored in the SystemPageCache table and information about the stored data is not displayed in the Summary window.

To view and work with summary cache information:

  1. In the General Admin tree, expand the Admin node, expand the System Tools node, expand the Cache Management node, expand the CAS Cache node, and then double-click Summary.

    The Summary page is shown in CAS Cache Summary window.

  2. Select the check box for the Ticket Cache or the Session Cache (or both) and click Write To Disk to write the selected cache's entire memory store to disk.
  3. Select the check box for the Ticket Cache or the Session Cache (or both) and click Flush Cache to flush the memory and disk stores for the selected caches.