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diff --git a/Documentation/trace-cmd/trace-cmd-dump.1.txt b/Documentation/trace-cmd/trace-cmd-dump.1.txt new file mode 100644 index 00000000..9c95244b --- /dev/null +++ b/Documentation/trace-cmd/trace-cmd-dump.1.txt @@ -0,0 +1,142 @@ +TRACE-CMD-DUMP(1) +=================== + +NAME +---- +trace-cmd-dump - show a meta data from a trace file, created by trace-cmd record + +SYNOPSIS +-------- +*trace-cmd dump* ['OPTIONS'] ['input-file'] + +DESCRIPTION +----------- +The trace-cmd(1) dump command will display the meta data from a trace file +created by trace-cmd record. + +OPTIONS +------- +*-i* 'input-file':: + By default, trace-cmd dump will read the file 'trace.dat'. But the *-i* + option open up the given 'input-file' instead. Note, the input file may + also be specified as the last item on the command line. +*-v*, *--validate*:: + Check if the input file is a valid trace file, created by trace-cmd. +*--summary*:: + Print a meta data summary - initial format and a short description of each + file section. This is the default action, if no arguments are specified. +*--head-page*:: + Print the header page information, stored in the file. +*--head-event*:: + Print the event header information, stored in the file. +*--ftrace-events*:: + Print formats of ftrace specific events. +*--systems*:: + Print information of event systems, stored in the file - name and number of + events for each system. +*--events*:: + Print formats of all events, stored in the file. +*--kallsyms*:: + Print information of the mapping of function addresses to the function names. +*--printk*:: + Print trace_printk() format strings, stored in the file. +*--cmd-lines*:: + Print mapping a PID to a process name. +*--options*:: + Print all options, stored in the file. +*--flyrecord*:: + Print the offset and the size of tracing data per each CPU. +*--clock*:: + Print the trace clock, used for timestamp of the tracing events, stored in the file. +*--all*:: + Print all meta data from the file. +*--help*:: + Print usage information. +*--verbose*[='level']:: + Set the log level. Supported log levels are "none", "critical", "error", "warning", + "info", "debug", "all" or their identifiers "0", "1", "2", "3", "4", "5", "6". Setting the log + level to specific value enables all logs from that and all previous levels. + The level will default to "info" if one is not specified. + + Example: enable all critical, error and warning logs + + trace-cmd report --verbose=warning + +EXAMPLES +-------- + +# trace-cmd dump --summary -i trace.dat + + Tracing meta data in file trace.dat: + [Initial format] + 6 [Version] + 0 [Little endian] + 8 [Bytes in a long] + 4096 [Page size, bytes] + [Header info, 205 bytes] + [Header event, 205 bytes] + [Ftrace format, 15 events] + [Events format, 2 systems] + [Kallsyms, 7144493 bytes] + [Trace printk, 2131 bytes] + [Saved command lines, 117 bytes] + 8 [CPUs with tracing data] + [12 options] + [Flyrecord tracing data] +------------------------------------------ + +# trace-cmd dump --flyrecord -i trace.dat + [Flyrecord tracing data] + 7176192 0 [offset, size of cpu 0] + 7176192 0 [offset, size of cpu 1] + 7176192 0 [offset, size of cpu 2] + 7176192 4096 [offset, size of cpu 3] + 7180288 4096 [offset, size of cpu 4] + 7184384 0 [offset, size of cpu 5] + 7184384 0 [offset, size of cpu 6] + 7184384 0 [offset, size of cpu 7] +------------------------------------------ + +# trace-cmd dump --summary --systems -i trace.dat + + Tracing meta data in file trace.dat: + [Initial format] + 6 [Version] + 0 [Little endian] + 8 [Bytes in a long] + 4096 [Page size, bytes] + [Header info, 205 bytes] + [Header event, 205 bytes] + [Ftrace format, 15 events] + [Events format, 3 systems] + sched 23 [system, events] + irq 5 [system, events] + kvm 70 [system, events] + [Kallsyms, 7144493 bytes] + [Trace printk, 2131 bytes] + [Saved command lines, 157 bytes] + 8 [CPUs with tracing data] + [11 options] + [Flyrecord tracing data] +------------------------------------------ + +# trace-cmd dump --summary --systems -i trace.dat +File trace.dat is a valid trace-cmd file +------------------------------------------ +SEE ALSO +-------- +trace-cmd(1), trace-cmd.dat(1) + +AUTHOR +------ +*Steven Rostedt* <rostedt@goodmis.org>, author of *trace-cmd*. +*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page. + +RESOURCES +--------- +https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/ + +COPYING +------- +Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under +the terms of the GNU Public License (GPL). |