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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | COMMANDS | OPTIONS | SEE ALSO | AUTHOR | RESOURCES | COPYING | NOTES | COLOPHON |
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TRACE-CMD(1) libtracefs Manual TRACE-CMD(1)
trace-cmd - interacts with Ftrace Linux kernel internal tracer
trace-cmd COMMAND [OPTIONS]
The trace-cmd(1) command interacts with the Ftrace tracer that is
built inside the Linux kernel. It interfaces with the Ftrace
specific files found in the debugfs file system under the tracing
directory. A COMMAND must be specified to tell trace-cmd what to
do.
record - record a live trace and write a trace.dat file to the
local disk or to the network.
set - set a ftrace configuration parameter.
report - reads a trace.dat file and converts the binary data to a
ASCII text readable format.
stream - Start tracing and read the output directly
profile - Start profiling and read the output directly
hist - show a histogram of the events.
stat - show tracing (ftrace) status of the running system
options - list the plugin options that are available to *report*
start - start the tracing without recording to a trace.dat file.
stop - stop tracing (only disables recording, overhead of tracer
is still in effect)
restart - restart tracing from a previous stop (only effects recording)
extract - extract the data from the kernel buffer and create a trace.dat
file.
show - display the contents of one of the Ftrace Linux kernel tracing files
reset - disables all tracing and gives back the system performance.
(clears all data from the kernel buffers)
clear - clear the content of the Ftrace ring buffers.
split - splits a trace.dat file into smaller files.
list - list the available plugins or events that can be recorded.
listen - open up a port to listen for remote tracing connections.
agent - listen on a vsocket for trace clients
setup-guest - create FIFOs for tracing guest VMs
restore - restore the data files of a crashed run of trace-cmd record
snapshot- take snapshot of running trace
stack - run and display the stack tracer
check-events - parse format strings for all trace events and return
whether all formats are parseable
convert - convert trace files
attach - attach a host trace.dat file to a guest trace.dat file
dump - read out the meta data from a trace file
-h, --help
Display the help text.
Other options see the man page for the corresponding command.
trace-cmd-record(1), trace-cmd-report(1), trace-cmd-hist(1),
trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1),
trace-cmd-reset(1), trace-cmd-restore(1), trace-cmd-stack(1),
trace-cmd-convert(1), trace-cmd-split(1), trace-cmd-list(1),
trace-cmd-listen(1), trace-cmd.dat(5), trace-cmd-check-events(1),
trace-cmd-stat(1), trace-cmd-attach(1)
Written by Steven Rostedt, <rostedt@goodmis.org[1]>
https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/
Copyright (C) 2010 Red Hat, Inc. Free use of this software is
granted under the terms of the GNU Public License (GPL).
1. rostedt@goodmis.org
mailto:rostedt@goodmis.org
This page is part of the trace-cmd (a front-end for Ftrace)
project. Information about the project can be found at
⟨https://www.trace-cmd.org/⟩. If you have a bug report for this
manual page, see ⟨https://www.trace-cmd.org/⟩. This page was
obtained from the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git⟩ on
2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2024-02-22.) If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
libtracefs 09/24/2023 TRACE-CMD(1)
Pages that refer to this page: sqlhist(1), strace(1), trace-cmd-agent(1), trace-cmd-attach(1), trace-cmd-check-events(1), trace-cmd-clear(1), trace-cmd-convert(1), trace-cmd-dump(1), trace-cmd-extract(1), trace-cmd-hist(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd-mem(1), trace-cmd-options(1), trace-cmd-profile(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-reset(1), trace-cmd-restore(1), trace-cmd-set(1), trace-cmd-show(1), trace-cmd-snapshot(1), trace-cmd-split(1), trace-cmd-sqlhist(1), trace-cmd-stack(1), trace-cmd-start(1), trace-cmd-stat(1), trace-cmd-stop(1), trace-cmd-stream(1), kbuffer_alloc(3), kbuffer_read_event(3), kbuffer_timestamp(3), libtraceevent(3), libtracefs(3), tep_alloc(3), tep_data_type(3), tep_event_common_fields(3), tep_filter_alloc(3), tep_find_common_field(3), tep_find_event(3), tep_find_function(3), tep_get_any_field_val(3), tep_get_cpus(3), tep_get_event(3), tep_get_header_page_size(3), tep_get_long_size(3), tep_get_page_size(3), tep_is_bigendian(3), tep_is_file_bigendian(3), tep_list_events(3), tep_load_plugins(3), tep_parse_event(3), tep_parse_header_page(3), tep_parse_saved_cmdlines(3), tep_plugin_kvm_get_func(3), tep_print_event(3), tep_print_field_content(3), tep_print_printk(3), tep_read_number(3), tep_read_number_field(3), tep_register_comm(3), tep_register_event_handler(3), tep_register_print_function(3), tep_set_flag(3), tep_set_function_resolver(3), tep_set_loglevel(3), tep_strerror(3), tracefs_binary_init(3), tracefs_cpu_open(3), tracefs_cpu_read_size(3), tracefs_dynevent_create(3), tracefs_eprobe_alloc(3), tracefs_error_last(3), tracefs_event_get_file(3), tracefs_event_systems(3), tracefs_file_exists(3), tracefs_filter_string_append(3), tracefs_find_cid_pid(3), tracefs_function_filter(3), tracefs_get_tracing_file(3), tracefs_hist_add_sort_key(3), tracefs_hist_alloc(3), tracefs_hist_start(3), tracefs_instance_create(3), tracefs_instance_file_open(3), tracefs_instance_get_name(3), tracefs_instance_set_affinity(3), tracefs_instance_tracers(3), tracefs_iterate_raw_events(3), tracefs_kprobe_alloc(3), tracefs_local_events(3), tracefs_option_enable(3), tracefs_options(3), tracefs_options_get_supported(3), tracefs_print_init(3), tracefs_set_loglevel(3), tracefs_sql(3), tracefs_synth_alloc(3), tracefs_synth_create(3), tracefs_synth_echo_cmd(3), tracefs_trace_is_on(3), tracefs_trace_pipe_stream(3), tracefs_tracers(3), tracefs_uprobe_alloc(3), trace_seq_init(3), trace-cmd.dat.v6(5), trace-cmd.dat.v7(5)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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