content hash size

Specifies the number of units, or hot content subsets, into which the content is divided when determining whether content is hot or cool. The requests for all content in a given subset are summed, and a state (hot or cool) is assigned to each subset. The content_hash_size should be within the same order of magnitude as the actual number of requests possible. For example, if the entire site is composed of 500,000 pieces of content, a content_hash_size of 100,000 is typical. If you specify a value for hot_pool, but do not specify a value for this variable, the cache statement uses a default hash size of 10 subsets. See also cool, hot, and content subset.