default "/boot/config-$UNAME_RELEASE"
default "arch/$ARCH/defconfig"
-menu "Code maturity level options"
+menu "General setup"
config EXPERIMENTAL
bool "Prompt for development and/or incomplete code/drivers"
Maximum of each of the number of arguments and environment
variables passed to init from the kernel command line.
-endmenu
-
-menu "General setup"
config LOCALVERSION
string "Local version - append to kernel release"
Say N if unsure.
+config FAIR_GROUP_SCHED
+ bool "Fair group CPU scheduler"
+ default y
+ depends on EXPERIMENTAL
+ help
+ This feature lets CPU scheduler recognize task groups and control CPU
+ bandwidth allocation to such task groups.
+
+choice
+ depends on FAIR_GROUP_SCHED
+ prompt "Basis for grouping tasks"
+ default FAIR_USER_SCHED
+
+config FAIR_USER_SCHED
+ bool "user id"
+ help
+ This option will choose userid as the basis for grouping
+ tasks, thus providing equal CPU bandwidth to each user.
+
+endchoice
+
config SYSFS_DEPRECATED
bool "Create deprecated sysfs files"
default y
config CC_OPTIMIZE_FOR_SIZE
bool "Optimize for size (Look out for broken compilers!)"
default y
- depends on ARM || H8300 || EXPERIMENTAL
+ depends on ARM || H8300 || SUPERH || EXPERIMENTAL
help
Enabling this option will pass "-Os" instead of "-O2" to gcc
resulting in a smaller kernel.
run glibc-based applications correctly.
config ANON_INODES
- bool "Enable anonymous inode source" if EMBEDDED
- default y
- help
- Anonymous inode source for pseudo-files like epoll, signalfd,
- timerfd and eventfd.
-
- If unsure, say Y.
+ bool
config EPOLL
bool "Enable eventpoll support" if EMBEDDED
default y
- depends on ANON_INODES
+ select ANON_INODES
help
Disabling this option will cause the kernel to be built without
support for epoll family of system calls.
config SIGNALFD
bool "Enable signalfd() system call" if EMBEDDED
- depends on ANON_INODES
+ select ANON_INODES
default y
help
Enable the signalfd() system call that allows to receive signals
config TIMERFD
bool "Enable timerfd() system call" if EMBEDDED
- depends on ANON_INODES
+ select ANON_INODES
+ depends on BROKEN
default y
help
Enable the timerfd() system call that allows to receive timer
config EVENTFD
bool "Enable eventfd() system call" if EMBEDDED
- depends on ANON_INODES
+ select ANON_INODES
default y
help
Enable the eventfd() system call that allows to receive both
choice
prompt "Choose SLAB allocator"
- default SLAB
+ default SLUB
help
This option allows to select a slab allocator.
default 0 if BASE_FULL
default 1 if !BASE_FULL
+config PAGE_GROUP_BY_MOBILITY
+ bool "Group pages based on their mobility in the page allocator"
+ def_bool y
+ help
+ The standard allocator will fragment memory over time which means
+ that high order allocations will fail even if kswapd is running. If
+ this option is set, the allocator will try and group page types
+ based on their ability to migrate or reclaim. This is a best effort
+ attempt at lowering fragmentation which a few workloads care about.
+ The loss is a more complex allocator that may perform slower. If
+ you are interested in working with large pages, say Y and set
+ /proc/sys/vm/min_free_bytes to 16374. Otherwise say N
+
menuconfig MODULES
bool "Enable loadable module support"
help