Histogram triggers
modulename: trace_events_hist.ko
configname: CONFIG_HIST_TRIGGERS
Linux Kernel Configuration
└─>Tracers
└─>Histogram triggers
In linux kernel since version 3.10 (release Date: 2013-06-30)
Hist triggers allow one or more arbitrary trace event fields
to be aggregated into hash tables and dumped to stdout by
reading a debugfs/tracefs file. They're useful for
gathering quick and dirty (though precise) summaries of
event activity as an initial guide for further investigation
using more advanced tools.
See
to be aggregated into hash tables and dumped to stdout by
reading a debugfs/tracefs file. They're useful for
gathering quick and dirty (though precise) summaries of
event activity as an initial guide for further investigation
using more advanced tools.
See