Admin:Block cache miss ratio

The "block cache miss ratio" represents the proportion of times the cache cannot find a block in memory and must read from the disk.

Because disk access is significantly more expensive than memory access, it is important to keep this value low.

The cache memory-size attribute configures the amount of memory allocated to the block cache:

<resin xmlns="http://caucho.com/ns/resin">
  <cluster id="">
     ...
     <cache memory-size="32m"/>
     ...
  </cluster>
</resin>