Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

introduce bfq i/o scheduler #2

Open
wants to merge 3 commits into
base: master
Choose a base branch
from
Open

introduce bfq i/o scheduler #2

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
e5a89b4
block: prepare I/O context code for BFQ-v5r1 for 3.1
ariava Oct 18, 2011
653e097
block: cgroups, kconfig, build bits for BFQ-v5r1-3.1
ariava Oct 18, 2011
6360df4
block: introduce the BFQ-v5r1 I/O sched for 3.1
ariava Oct 18, 2011
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
26 changes: 26 additions & 0 deletions block/Kconfig.iosched
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,28 @@ config CFQ_GROUP_IOSCHED
---help---
Enable group IO scheduling in CFQ.

config IOSCHED_BFQ
tristate "BFQ I/O scheduler"
depends on EXPERIMENTAL
default n
---help---
The BFQ I/O scheduler tries to distribute bandwidth among
all processes according to their weights.
It aims at distributing the bandwidth as desired, independently of
the disk parameters and with any workload. It also tries to
guarantee low latency to interactive and soft real-time
applications. If compiled built-in (saying Y here), BFQ can
be configured to support hierarchical scheduling.

config CGROUP_BFQIO
bool "BFQ hierarchical scheduling support"
depends on CGROUPS && IOSCHED_BFQ=y
default n
---help---
Enable hierarchical scheduling in BFQ, using the cgroups
filesystem interface. The name of the subsystem will be
bfqio.

choice
prompt "Default I/O scheduler"
default DEFAULT_CFQ
Expand All @@ -56,6 +78,9 @@ choice
config DEFAULT_CFQ
bool "CFQ" if IOSCHED_CFQ=y

config DEFAULT_BFQ
bool "BFQ" if IOSCHED_BFQ=y

config DEFAULT_NOOP
bool "No-op"

Expand All @@ -65,6 +90,7 @@ config DEFAULT_IOSCHED
string
default "deadline" if DEFAULT_DEADLINE
default "cfq" if DEFAULT_CFQ
default "bfq" if DEFAULT_BFQ
default "noop" if DEFAULT_NOOP

endmenu
Expand Down
1 change: 1 addition & 0 deletions block/Makefile
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ obj-$(CONFIG_BLK_DEV_THROTTLING) += blk-throttle.o
obj-$(CONFIG_IOSCHED_NOOP) += noop-iosched.o
obj-$(CONFIG_IOSCHED_DEADLINE) += deadline-iosched.o
obj-$(CONFIG_IOSCHED_CFQ) += cfq-iosched.o
obj-$(CONFIG_IOSCHED_BFQ) += bfq-iosched.o

obj-$(CONFIG_BLOCK_COMPAT) += compat_ioctl.o
obj-$(CONFIG_BLK_DEV_INTEGRITY) += blk-integrity.o
Loading