X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=init%2FKconfig;h=bab643f7717f2a0be9b2b63d7c4d14acdb5a99e5;hb=b92a6edd4b77a8794adb497280beea5df5e59a14;hp=37711fe3c01c55d5a454501206dba63948d6f6c0;hpb=24e377a83220ef05c9b5bec7e01d65eed6609aa6;p=linux-2.6

diff --git a/init/Kconfig b/init/Kconfig
index 37711fe3c0..bab643f771 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -282,11 +282,11 @@ config CPUSETS
 	  Say N if unsure.
 
 config FAIR_GROUP_SCHED
-	bool "Fair group cpu scheduler"
-	default n
+	bool "Fair group CPU scheduler"
+	default y
 	depends on EXPERIMENTAL
 	help
-	  This feature lets cpu scheduler recognize task groups and control cpu
+	  This feature lets CPU scheduler recognize task groups and control CPU
 	  bandwidth allocation to such task groups.
 
 choice
@@ -294,11 +294,11 @@ choice
 	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.
+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
 
@@ -607,6 +607,19 @@ config BASE_SMALL
 	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