NAME trace - show or dump the tracing info SYNOPSIS trace [ <show [-c <cpulist>] [-f [no]<flagname>]> | <dump [-sm] <dest-dir>> ] DESCRIPTION trace show shows all events with readability text(sorted by timestamp) trace report the same as "trace show" trace dump [-sm] <dest-dir> dump ring_buffers to dest-dir. Then you can parse it by other tracing tools. The dirs and files are generated the same as debugfs/tracing. -m: also dump metadata of ftrace. -s: also dump symbols of the kernel. trace dump -t [output-file-name] dump ring_buffers and all meta data to a file that can be parsed by trace-cmd. Default output file name is "trace.dat".