Published at LXer:

In a previous article I presented two new patch concepts (bcache and flashcache) for improving performance but using SSD’s as a caching mechanism for hard drives. In reality the caching is achieved by using a block device to cache another block device, but practically it’s using an SSD to cache hard drives. I’ve been waiting for some time for a patch that increases performance by using a cache that is larger than the disk cache and faster than the disk. SSD’s fit that bill pretty well, especially given their fantastic read performance compared to disks.

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