How are the Cache Digest statistics in the Cache Manager to be interpreted?
Cache Digest statistics can be seen from the Cache Manager or through the squidclient utility. The following examples show how to use the squidclient utility to request the list of possible operations from the localhost, local digest statistics from the localhost, refresh statistics from the localhost and local digest statistics from another cache, respectively. squidclient mgr:menu squidclient mgr:store_digest squidclient mgr:refresh squidclient -h peer mgr:store_digest The available statistics provide a lot of useful debugging information. The refresh statistics include a section for Cache Digests which explains why items were added (or not) to the digest. The following example shows local digest statistics for a 16GB cache in a corporate intranet environment (may be a useful reference for the discussion below). store digest: size: 768000 bytes entries: count: 588327 capacity: 1228800 util: 48% deletion attempts: 0 bits: per entry: 5 on: 1953311 capacity: 6144000 util: 32% bit-seq: c
