CONFIG_IOSCHED_CFQ: CFQ I/O scheduler

General informations

The Linux kernel configuration item CONFIG_IOSCHED_CFQ has multiple definitions:

CFQ I/O scheduler found in block/Kconfig.iosched

The configuration item CONFIG_IOSCHED_CFQ:

• prompt: CFQ I/O scheduler
• type: tristate
• depends on: (none)
• defined in block/Kconfig.iosched
• found in Linux kernels: 2.6.15–2.6.39, 3.0–3.19, 4.0–4.20
• modules built: cfq-iosched, cfq-iosched

Help text

The CFQ I/O scheduler tries to distribute bandwidth equally among all processes in the system. It should provide a fair and low latency working environment, suitable for both desktop and server systems.

This is the default I/O scheduler.

CFQ I/O scheduler found in drivers/block/Kconfig.iosched

The configuration item CONFIG_IOSCHED_CFQ:

• prompt: CFQ I/O scheduler
• type: tristate
• depends on: (none)
• defined in drivers/block/Kconfig.iosched
• found in Linux kernels: 2.6.10–2.6.14
• modules built: cfq-iosched, cfq-iosched

Help text

The CFQ I/O scheduler tries to distribute bandwidth equally among all processes in the system. It should provide a fair working environment, suitable for desktop systems.

CFQ I/O scheduler found in drivers/block/Kconfig.iosched

The configuration item CONFIG_IOSCHED_CFQ:

• prompt: CFQ I/O scheduler
• type: bool
• depends on: CONFIG_EMBEDDED
• defined in drivers/block/Kconfig.iosched
• found in Linux kernels: 2.6.6–2.6.9
• modules built: cfq-iosched, cfq-iosched

Help text

The CFQ I/O scheduler tries to distribute bandwidth equally among all processes in the system. It should provide a fair working environment, suitable for desktop systems.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module cfq-iosched CONFIG_IOSCHED_CFQ : block/Kconfig.iosched : "CFQ I/O scheduler" # in 2.6.15–2.6.39, 3.0–3.19, 4.0–4.20
• lkddb module cfq-iosched CONFIG_IOSCHED_CFQ : drivers/block/Kconfig.iosched : "CFQ I/O scheduler" # in 2.6.10–2.6.14

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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