diff options
Diffstat (limited to 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 743647005f64..2aec9376825f 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -847,6 +847,29 @@ config KPROBE_EVENT_GEN_TEST If unsure, say N. +config HIST_TRIGGERS_DEBUG + bool "Hist trigger debug support" + depends on HIST_TRIGGERS + help + Add "hist_debug" file for each event, which when read will + dump out a bunch of internal details about the hist triggers + defined on that event. + + The hist_debug file serves a couple of purposes: + + - Helps developers verify that nothing is broken. + + - Provides educational information to support the details + of the hist trigger internals as described by + Documentation/trace/histogram-design.rst. + + The hist_debug output only covers the data structures + related to the histogram definitions themselves and doesn't + display the internals of map buckets or variable values of + running histograms. + + If unsure, say N. + endif # FTRACE endif # TRACING_SUPPORT |