CONFIG_DM_WRITECACHE: Writecache target

General informations

The Linux kernel configuration item CONFIG_DM_WRITECACHE:

• prompt: Writecache target
• type: tristate
• depends on: CONFIG_BLK_DEV_DM
• defined in drivers/md/Kconfig
• found in Linux kernels: 4.18–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD
• modules built: dm-writecache

Help text

The writecache target caches writes on persistent memory or SSD. It is intended for databases or other programs that need extremely low commit latency.

The writecache target doesn't cache reads because reads are supposed to be cached in standard RAM.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module dm-writecache CONFIG_DM_WRITECACHE : drivers/md/Kconfig : "Writecache target" # in 4.18–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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