1 files changed, 0 insertions, 43 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index af50f9bbe68e..4d880b3d1f35 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1014,49 +1014,6 @@ and is between 256 and 4096 characters. It is defined in the file
 
         mga=            [HW,DRM]
 
-        migration_cost=
-                        [KNL,SMP] debug: override scheduler migration costs
-                        Format: <level-1-usecs>,<level-2-usecs>,...
-                        This debugging option can be used to override the
-                        default scheduler migration cost matrix. The numbers
-                        are indexed by 'CPU domain distance'.
-                        E.g. migration_cost=1000,2000,3000 on an SMT NUMA
-                        box will set up an intra-core migration cost of
-                        1 msec, an inter-core migration cost of 2 msecs,
-                        and an inter-node migration cost of 3 msecs.
-
-                        WARNING: using the wrong values here can break
-                        scheduler performance, so it's only for scheduler
-                        development purposes, not production environments.
-
-        migration_debug=
-                        [KNL,SMP] migration cost auto-detect verbosity
-                        Format=<0|1|2>
-                        If a system's migration matrix reported at bootup
-                        seems erroneous then this option can be used to
-                        increase verbosity of the detection process.
-                        We default to 0 (no extra messages), 1 will print
-                        some more information, and 2 will be really
-                        verbose (probably only useful if you also have a
-                        serial console attached to the system).
-
-        migration_factor=
-                        [KNL,SMP] multiply/divide migration costs by a factor
-                        Format=<percent>
-                        This debug option can be used to proportionally
-                        increase or decrease the auto-detected migration
-                        costs for all entries of the migration matrix.
-                        E.g. migration_factor=150 will increase migration
-                        costs by 50%. (and thus the scheduler will be less
-                        eager migrating cache-hot tasks)
-                        migration_factor=80 will decrease migration costs
-                        by 20%. (thus the scheduler will be more eager to
-                        migrate tasks)
-
-                        WARNING: using the wrong values here can break
-                        scheduler performance, so it's only for scheduler
-                        development purposes, not production environments.
-
         mousedev.tap_time=
                         [MOUSE] Maximum time between finger touching and
                         leaving touchpad surface for touch to be considered