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Pblcache is an open source project to provide applications with a persistent, look-aside, block based cache based on the Mercury paper.
Pblcache architecture is composed of the following:
- Pbl Application: Determines how the cache is to be used. Its main goal is to provide an abstract method of managing the cache.
- Cache Map: Maintains all of the cache metadata in main memory and is responsible for cache allocation and evictions.
- Log: Responsible for reading and writing to the SSD
Pbl applications determine how the cache can be used. The following is a list of applications which use pblcache.