diff options
Diffstat (limited to 'kernel/trace')
-rw-r--r-- | kernel/trace/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index b516a8e19d51..590a27fc212f 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig | |||
@@ -191,6 +191,7 @@ config IRQSOFF_TRACER | |||
191 | select GENERIC_TRACER | 191 | select GENERIC_TRACER |
192 | select TRACER_MAX_TRACE | 192 | select TRACER_MAX_TRACE |
193 | select RING_BUFFER_ALLOW_SWAP | 193 | select RING_BUFFER_ALLOW_SWAP |
194 | select TRACER_SNAPSHOT | ||
194 | help | 195 | help |
195 | This option measures the time spent in irqs-off critical | 196 | This option measures the time spent in irqs-off critical |
196 | sections, with microsecond accuracy. | 197 | sections, with microsecond accuracy. |
@@ -213,6 +214,7 @@ config PREEMPT_TRACER | |||
213 | select GENERIC_TRACER | 214 | select GENERIC_TRACER |
214 | select TRACER_MAX_TRACE | 215 | select TRACER_MAX_TRACE |
215 | select RING_BUFFER_ALLOW_SWAP | 216 | select RING_BUFFER_ALLOW_SWAP |
217 | select TRACER_SNAPSHOT | ||
216 | help | 218 | help |
217 | This option measures the time spent in preemption-off critical | 219 | This option measures the time spent in preemption-off critical |
218 | sections, with microsecond accuracy. | 220 | sections, with microsecond accuracy. |
@@ -232,6 +234,7 @@ config SCHED_TRACER | |||
232 | select GENERIC_TRACER | 234 | select GENERIC_TRACER |
233 | select CONTEXT_SWITCH_TRACER | 235 | select CONTEXT_SWITCH_TRACER |
234 | select TRACER_MAX_TRACE | 236 | select TRACER_MAX_TRACE |
237 | select TRACER_SNAPSHOT | ||
235 | help | 238 | help |
236 | This tracer tracks the latency of the highest priority task | 239 | This tracer tracks the latency of the highest priority task |
237 | to be scheduled in, starting from the point it has woken up. | 240 | to be scheduled in, starting from the point it has woken up. |