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Setting up a Linux writecache as a RAM disk (2019)
Kicking write I/O operations into overdrive with the Linux device mapper writecache.
A computer cache is a component (typically leveraging some sort of performant memory) that temporarily stores data for current write and future read I/O requests. Solid State Drives (SSDs) brought performance to the forefront of computing technologies, and their adoption is increasing not only in the data center but also in consumer-grade products. Unlike its traditional spinning hard disk drive (HDD) counterpart, SSDs comprise a collection of computer chips (non-volatile NAND memory) with no movable parts.
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