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PrimoCache is a supplementary software caching scheme that cooperates with system memory to provide data caching for disks. It improves system performance by transparently storing data into memory such that future requests for that data can be served faster. PrimoCache caches data on a logical block basis (offsets within a disk) while windows cache manager caches on a virtual block basis (offsets within a file).

The most important advantage of PrimoCache is its ability to cache data for a specified volume, which is of interest to the end user. A secondary purpose of the application is to make use of the memory that is wasted on systems equipped with 4GB RAM or more, running a 32-bit enabled OS.
The program is able to manipulate several volumes at a time, or alternatively, individual drives, for which different caching profiles have been created. Usually, the configuration of a cache operation includes setting whether the disc reading or writing should be improved, as well as configuring the managed memory, block size and algorithm.

PrimoCache can also utilize the OS Invisible Memory which is wasted on 32-bit Windows when 4GB memory or more is installed.

Main Features:

Supports LRU (Least Recently Used) and LFU (Least Frequently Used) cache algorithms
Supports caching strategies: Read/Write Caching, Read-Only Caching and Write-Only Caching
Supports Write-Through and Write-Deferred modes
Supports OS Invisible Memory and SSD (Solid-state Drive) as Level-II cache
Supports caching for volumes or entire disks
Supports TRIM command for SSD
Supports visual performance monitor
Supports cache plug and play
Supports basic and dynamic disks
Supports NTFS junction point
Supports volume/disk with proprietary file system