SYSTEM AND METHOD FOR CACHE MONITORING IN STORAGE SYSTEMS

摘要

A system and method of cache monitoring in storage systems includes storing storage blocks in a cache memory. Each of the storage blocks is associated with status indicators. As requests are received at the cache memory, the requests are processed and the status indicators associated with the storage blocks are updated in response to the processing of the requests. One or more storage blocks are selected for eviction when a storage block limit is reached. As ones of the selected one or more storage blocks are evicted from the cache memory, the block counters are updated based on the status indicators associated with the evicted storage blocks. Each of the block counters is associated with a corresponding combination of the status indicators. Caching statistics are periodically updated based on the block counters.

主权项

1. A method of caching, the method comprising:
storing storage blocks in a cache memory, each of the storage blocks being associated with status indicators; as requests are received at the cache memory:
processing the requests; andupdating the status indicators associated with the storage blocks in response to the processing of the requests; selecting one or more storage blocks for eviction when a storage block limit is reached; as the selected one or more storage blocks are evicted from the cache memory, updating block counters based on the status indicators associated with the evicted storage blocks, each of the block counters being associated with a corresponding combination of the status indicators; and periodically updating caching statistics based on the block counters.