ckrm_E15-io-controller

[linux-2.6.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index c6888db..12c6ab9 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -168,25 +168,18 @@ config CKRM_RES_NUMTASKS
        
          Say N if unsure, Y to use the feature.
 
-config CKRM_RES_MEM
-       bool "Class based physical memory controller"
-       default y
-       depends on CKRM
-       help
-         Provide the basic support for collecting physical memory usage information
-         among classes. Say Y if you want to know the memory usage of each class.
-
-config CKRM_MEM_LRUORDER_CHANGE
-       bool "Change the LRU ordering of scanned pages"
-       default n
-       depends on CKRM_RES_MEM
+config CKRM_RES_BLKIO
+       tristate " Disk I/O Resource Controller"
+       depends on CKRM_TYPE_TASKCLASS && IOSCHED_CFQ
+       default m
        help
-         While trying to free pages, by default(n), scanned pages are left were they
-         are found if they belong to relatively under-used class. In this case the
-         LRU ordering of the memory subsystemis left intact. If this option is chosen,
-         then the scanned pages are moved to the tail of the list(active or inactive).
-         Changing this to yes reduces the checking overhead but violates the approximate
-         LRU order that is maintained by the paging subsystem.
+         Provides a resource controller for best-effort block I/O 
+         bandwidth control. The controller attempts this by proportional 
+         servicing of requests in the I/O scheduler. However, seek
+         optimizations and reordering by device drivers/disk controllers may
+         alter the actual bandwidth delivered to a class.
+       
+         Say N if unsure, Y to use the feature.
 
 config CKRM_TYPE_SOCKETCLASS
        bool "Class Manager for socket groups"