aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86_64/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86_64/Kconfig')
-rw-r--r--arch/x86_64/Kconfig29
1 files changed, 2 insertions, 27 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 92f5a5266023..a853d87ff7e3 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -207,33 +207,6 @@ config SMP
207 207
208 If you don't know what to do here, say N. 208 If you don't know what to do here, say N.
209 209
210config PREEMPT
211 bool "Preemptible Kernel"
212 ---help---
213 This option reduces the latency of the kernel when reacting to
214 real-time or interactive events by allowing a low priority process to
215 be preempted even if it is in kernel mode executing a system call.
216 This allows applications to run more reliably even when the system is
217 under load. On contrary it may also break your drivers and add
218 priority inheritance problems to your system. Don't select it if
219 you rely on a stable system or have slightly obscure hardware.
220 It's also not very well tested on x86-64 currently.
221 You have been warned.
222
223 Say Y here if you are feeling brave and building a kernel for a
224 desktop, embedded or real-time system. Say N if you are unsure.
225
226config PREEMPT_BKL
227 bool "Preempt The Big Kernel Lock"
228 depends on PREEMPT
229 default y
230 help
231 This option reduces the latency of the kernel by making the
232 big kernel lock preemptible.
233
234 Say Y here if you are building a kernel for a desktop system.
235 Say N if you are unsure.
236
237config SCHED_SMT 210config SCHED_SMT
238 bool "SMT (Hyperthreading) scheduler support" 211 bool "SMT (Hyperthreading) scheduler support"
239 depends on SMP 212 depends on SMP
@@ -244,6 +217,8 @@ config SCHED_SMT
244 cost of slightly increased overhead in some places. If unsure say 217 cost of slightly increased overhead in some places. If unsure say
245 N here. 218 N here.
246 219
220source "kernel/Kconfig.preempt"
221
247config K8_NUMA 222config K8_NUMA
248 bool "K8 NUMA support" 223 bool "K8 NUMA support"
249 select NUMA 224 select NUMA