tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1config DM_PCACHE
2 tristate "Persistent cache for Block Device (Experimental)"
3 depends on BLK_DEV_DM
4 depends on DEV_DAX
5 help
6 PCACHE provides a mechanism to use persistent memory (e.g., CXL persistent memory,
7 DAX-enabled devices) as a high-performance cache layer in front of
8 traditional block devices such as SSDs or HDDs.
9
10 PCACHE is implemented as a kernel module that integrates with the block
11 layer and supports direct access (DAX) to persistent memory for low-latency,
12 byte-addressable caching.
13
14 Note: This feature is experimental and should be tested thoroughly
15 before use in production environments.
16
17 If unsure, say 'N'.