Messages in this thread Patches in this message | | | Date | Sat, 3 May 2008 20:42:34 -0400 | From | "Parag Warudkar" <> | Subject | [PATCH] default to n for GROUP_SCHED and FAIR_GROUP_SCHED |
| |
GROUP_SCHED is confirmed to cause unacceptable latencies - http://lkml.org/lkml/2008/5/2/370.
Besides there is no reason for it to be on by default.
Mark it EXPERIMENTAL and default to no.
Patch also attached.
Signed-off-by: Parag Warudkar <parag.warudkar@gmail.com>
--- linux-2.6/init/Kconfig.orig 2008-05-03 20:14:41.000000000 -0400 +++ linux-2.6/init/Kconfig 2008-05-03 20:29:06.000000000 -0400 @@ -318,7 +318,8 @@
config GROUP_SCHED bool "Group CPU scheduler" - default y + depends on EXPERIMENTAL + default n help This feature lets CPU scheduler recognize task groups and control CPU bandwidth allocation to such task groups. @@ -326,7 +327,7 @@ config FAIR_GROUP_SCHED bool "Group scheduling for SCHED_OTHER" depends on GROUP_SCHED - default y + default GROUP_SCHED
config RT_GROUP_SCHED bool "Group scheduling for SCHED_RR/FIFO"GROUP_SCHED is confirmed to cause unacceptable latencies - http://lkml.org/lkml/2008/5/2/370.
Besides there is no reason for it to be on by default.
Mark it EXPERIMENTAL and default to no.
Signed-off-by: Parag Warudkar <parag.warudkar@gmail.com>
--- linux-2.6/init/Kconfig.orig 2008-05-03 20:14:41.000000000 -0400 +++ linux-2.6/init/Kconfig 2008-05-03 20:29:06.000000000 -0400 @@ -318,7 +318,8 @@ config GROUP_SCHED bool "Group CPU scheduler" - default y + depends on EXPERIMENTAL + default n help This feature lets CPU scheduler recognize task groups and control CPU bandwidth allocation to such task groups. @@ -326,7 +327,7 @@ config FAIR_GROUP_SCHED bool "Group scheduling for SCHED_OTHER" depends on GROUP_SCHED - default y + default GROUP_SCHED config RT_GROUP_SCHED bool "Group scheduling for SCHED_RR/FIFO" | |