TRACE-CMD.DAT.V(5) libtracefs TRACE-CMD.DAT.V(5) (NAME) trace-cmd.dat.v6 - trace-cmd (SYNOPSIS) trace-cmd.dat ignore (DESCRIPTION) trace-cmd(1) <> . . trace-cmd ( trace-cmd-report(1)). (INITIAL FORMAT) : 0x17 0x08 0x44 : "tracing" ('\0') : "6\0" (endianness) : 0 = little endian 1 = big endian "long" : 4 - 32-bit long values 8 - 64-bit long values : long . [ . ] . (HEADER INFO FORMAT) . : "header_page\0" . debugfs/tracing/events/header_page . : \fBcommit\fR long . : field: local_t commit; offset:8; \fBsize:8;\fR signed:1; long . : "header_event\0" . debugfs/tracing/events/header_event . trace-cmd (ring buffer) . (FTRACE EVENT FORMATS) Ftrace . Ftrace . Ftrace . : Ftrace. Ftrace : debugfs/tracing/events/ftrace//format (EVENT FORMATS) Ftrace . (event systems) . debugfs/tracing/events \fBftrace\fR . : null . . : . : debugfs/tracing/events///format (KALLSYMS INFORMATION) . . : /proc/kallsyms TRACE_PRINTK (TRACE_PRINTK INFORMATION) ()trace_printk . : debugfs/tracing/printk_formats printk . debugfs/tracing/printk_formats . (PROCESS INFORMATION) trace_printk (PID) . PID . debugfs/tracing/saved_cmdlines . TRACE-CMD (REST OF TRACE-CMD HEADER) trace.dat . (CPU) ( ). : "options \0" "latency \0" "flyrecord\0" "options \0" : . . . . . . : "latency \0" "flyrecord\0" . "latency \0" (ASCII) : debugfs/tracing/trace "flyrecord\0" : : (offset) CPU . CPU . (CPU DATA) (CPU) . (padding) CPU CPU ( ) . Ftrace . trace-cmd \fBmmap(2)\fR . (mmap) . (SEE ALSO) trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd.dat(5) (AUTHOR) Steven Rostedt (RESOURCES) https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git (COPYING) (C) 2010 Red Hat, Inc. (GPL) . (NOTES) 1. rostedt@goodmis.org mailto:rostedt@goodmis.org libtracefs 03/09/2026 TRACE-CMD.DAT.V(5)