ASPCACHE FEATURES

Data Caching

• Add, update, retrieve, and remove items - ASPCache™ has standard collection functionality, and then some.
• Set item expiration: Cached items can optionally be given an expiration period.
• Auto flushes underused items: Cache-wide settings specify thresholds and cleanup frequency for removing underused items.
• Cache shrinking to limit resource consumption: The max size for the cache can optionally be set. The most frequently used items remain in the cache, the least frequently used items are removed.
• Access statistics for each item: Hits, time until expiration, time in cache, time since last use.

Output Caching

• Page fragment caching: Cache page fragment files and write them to the Response object.
• Auto updates when cached files change: Changes to page fragment files are instantly reflected.
• Page fragments can be generated by other applications: Generate page fragments with APGen™, FSO, XSLT, etc.
• Provides best output caching when used with APGen: APGen is specialized for scripted generation of Web page content.

Performance

• Ultra high-performance collection: Proprietary algorithm gives incredibly fast lookup by key. Read-write locks allow simultaneous reads from different threads on SMP machines.
• Item handles for O(1) lookup: Handles offer O(1) lookup and threadsafe access.
• Threadsafe and aggregates the Free-Threaded Marshaler: No overhead while accessing ASPCache from different threads.
• Background removal of underused and expired items: Removal of underused and expired items never slows requests or locks the cache.
• Streamlined fragment caching: Avoids overhead from BSTR allocation, Unicode conversion, COM object creation, file access, and script execution.
• Fast enumeration: Enumeration uses handles for O(1) lookup and does not lock the cache.