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Diffstat (limited to 'drivers/block/Kconfig.iosched')
| -rw-r--r-- | drivers/block/Kconfig.iosched | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/block/Kconfig.iosched b/drivers/block/Kconfig.iosched new file mode 100644 index 000000000000..6070a480600b --- /dev/null +++ b/drivers/block/Kconfig.iosched @@ -0,0 +1,41 @@ + +menu "IO Schedulers" + +config IOSCHED_NOOP + bool + 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 + tristate "Anticipatory I/O scheduler" + 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 + tristate "Deadline I/O scheduler" + 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. + +config IOSCHED_CFQ + tristate "CFQ I/O scheduler" + default y + ---help--- + 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. + +endmenu |