Hist trigger debug support
configname: CONFIG_HIST_TRIGGERS_DEBUG
Linux Kernel Configuration
└─>Kernel hacking
└─>Tracers
└─>Hist trigger debug support
In linux kernel since version 5.1 (release Date: 2019-05-05)
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 <a href="https://www.kernel.org/doc/Documentation/trace/histogram-design.rst.
The">Documentation/trace/histogram-design.rst.
The</a> 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.
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 <a href="https://www.kernel.org/doc/Documentation/trace/histogram-design.rst.
The">Documentation/trace/histogram-design.rst.
The</a> 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.