"explicit preemption points" to the kernel code. These new
preemption points have been selected to reduce the maximum
latency of rescheduling, providing faster application reactions,
- at the cost of slighly lower throughput.
+ at the cost of slightly lower throughput.
This allows reaction to interactive events by allowing a
low priority process to voluntarily preempt itself even if it
even if it is in kernel mode executing a system call and would
otherwise not be about to reach a natural preemption point.
This allows applications to run more 'smoothly' even when the
- system is under load, at the cost of slighly lower throughput
+ system is under load, at the cost of slightly lower throughput
and a slight runtime overhead to kernel code.
Select this if you are building a kernel for a desktop or
endchoice
-config PREEMPT_BKL
- bool "Preempt The Big Kernel Lock"
- depends on SMP || PREEMPT
+config RCU_TRACE
+ bool "Enable tracing for RCU - currently stats in debugfs"
+ select DEBUG_FS
default y
help
- This option reduces the latency of the kernel by making the
- big kernel lock preemptible.
+ This option provides tracing in RCU which presents stats
+ in debugfs for debugging RCU implementation.
- Say Y here if you are building a kernel for a desktop system.
+ Say Y here if you want to enable RCU tracing
Say N if you are unsure.
-