2 bool "No-op I/O scheduler" if EMBEDDED
5 The no-op I/O scheduler is a minimal scheduler that does basic merging
6 and sorting. Its main uses include non-disk based block devices like
7 memory devices, and specialised software or hardware environments
8 that do their own scheduling and require only minimal assistance from
12 bool "Anticipatory I/O scheduler" if EMBEDDED
15 The anticipatory I/O scheduler is the default disk scheduler. It is
16 generally a good choice for most environments, but is quite large and
17 complex when compared to the deadline I/O scheduler, it can also be
18 slower in some cases especially some database loads.
20 config IOSCHED_DEADLINE
21 bool "Deadline I/O scheduler" if EMBEDDED
24 The deadline I/O scheduler is simple and compact, and is often as
25 good as the anticipatory I/O scheduler, and in some database
26 workloads, better. In the case of a single process performing I/O to
27 a disk at any one time, its behaviour is almost identical to the
28 anticipatory I/O scheduler and so is a good choice.
31 bool "CFQ I/O scheduler" if EMBEDDED
34 The CFQ I/O scheduler tries to distribute bandwidth equally
35 among all processes in the system. It should provide a fair
36 working environment, suitable for desktop systems.