Return to Kconfig.iosched CVS log

Up to [Development] / linux-2.6-xfs / drivers / block

Initial Import 2.6.0

config IOSCHED_NOOP
	bool "No-op I/O scheduler" if EMBEDDED
	default y
	---help---
	  The no-op I/O scheduler is a minimal scheduler that does basic merging
	  and sorting. Its main uses include non-disk based block devices like
	  memory devices, and specialised software or hardware environments
	  that do their own scheduling and require only minimal assistance from
	  the kernel.

config IOSCHED_AS
	bool "Anticipatory I/O scheduler" if EMBEDDED
	default y
	---help---
	  The anticipatory I/O scheduler is the default disk scheduler. It is
	  generally a good choice for most environments, but is quite large and
	  complex when compared to the deadline I/O scheduler, it can also be
	  slower in some cases especially some database loads.

config IOSCHED_DEADLINE
	bool "Deadline I/O scheduler" if EMBEDDED
	default y
	---help---
	  The deadline I/O scheduler is simple and compact, and is often as
	  good as the anticipatory I/O scheduler, and in some database
	  workloads, better. In the case of a single process performing I/O to
	  a disk at any one time, its behaviour is almost identical to the
	  anticipatory I/O scheduler and so is a good choice.