Module rocks::filter_policy
[−]
[src]
A database can be configured with a custom FilterPolicy
object.
This object is responsible for creating a small filter from a set
of keys. These filters are stored in rocksdb and are consulted
automatically by rocksdb to decide whether or not to read some
information from disk. In many cases, a filter can cut down the
number of disk seeks form a handful to a single disk seek per
DB::Get()
call.
Most people will want to use the builtin bloom filter support (see
NewBloomFilterPolicy()
below).
Structs
FilterPolicy |