Commit 7a9bdd88 authored by Suresh Siddha's avatar Suresh Siddha Committed by Tony Luck

[IA64] Add config SCHED_SMT

Now that we have MC/MT detection patches in, appended patch allows us to
configure MT scheduler optimizations. For now, we will this option off
by default.

There is some discussion going on lkml about setting up sched-domains 
which are absolutely needed (like for example, we shouldn't setup SMT domain
for non MT processors). Once that patch goes in, we can enable this option by
default.
Signed-off-by: default avatarSuresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent ac09f698
...@@ -261,6 +261,15 @@ config HOTPLUG_CPU ...@@ -261,6 +261,15 @@ config HOTPLUG_CPU
can be controlled through /sys/devices/system/cpu/cpu#. can be controlled through /sys/devices/system/cpu/cpu#.
Say N if you want to disable CPU hotplug. Say N if you want to disable CPU hotplug.
config SCHED_SMT
bool "SMT scheduler support"
depends on SMP
default off
help
Improves the CPU scheduler's decision making when dealing with
Intel IA64 chips with MultiThreading at a cost of slightly increased
overhead in some places. If unsure say N here.
config PREEMPT config PREEMPT
bool "Preemptible Kernel" bool "Preemptible Kernel"
help help
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment