X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2FKconfig.preempt;h=61fa116efcdefcc21a6216c9193a75e78eb86864;hb=1020387f5f3b52929b387103cf976321981f8e26;hp=0b46a5dff4c047c72f9d062484124bd3261cf1a3;hpb=5696c1944a33b4434a9a1ebb6383b906afd43a10;p=linux-2.6 diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt index 0b46a5dff4..61fa116efc 100644 --- a/kernel/Kconfig.preempt +++ b/kernel/Kconfig.preempt @@ -23,7 +23,7 @@ config PREEMPT_VOLUNTARY "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 @@ -43,7 +43,7 @@ config PREEMPT 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 @@ -63,3 +63,13 @@ config PREEMPT_BKL Say Y here if you are building a kernel for a desktop system. Say N if you are unsure. +config RCU_TRACE + bool "Enable tracing for RCU - currently stats in debugfs" + select DEBUG_FS + default y + help + This option provides tracing in RCU which presents stats + in debugfs for debugging RCU implementation. + + Say Y here if you want to enable RCU tracing + Say N if you are unsure.