1TRACE-CMD-STAT(1)              libtracefs Manual             TRACE-CMD-STAT(1)
2
3
4

NAME

6       trace-cmd-stat - show the status of the tracing (ftrace) system
7

SYNOPSIS

9       trace-cmd stat [OPTIONS]
10

DESCRIPTION

12       The trace-cmd(1) stat displays the various status of the tracing
13       (ftrace) system. The status that it shows is:
14
15       Instances: List all configured ftrace instances.
16
17       Tracer: if one of the tracers (like function_graph) is active.
18       Otherwise nothing is displayed.
19
20       Events: Lists the events that are enable.
21
22       Event filters: Shows any filters that are set for any events
23
24       Function filters: Shows any filters for the function tracers
25
26       Graph functions: Shows any functions that the function graph tracer
27       should graph
28
29       Buffers: Shows the trace buffer size if they have been expanded. By
30       default, tracing buffers are in a compressed format until they are
31       used. If they are compressed, the buffer display will not be shown.
32
33       Trace clock: If the tracing clock is anything other than the default
34       "local" it will be displayed.
35
36       Trace CPU mask: If not all available CPUs are in the tracing CPU mask,
37       then the tracing CPU mask will be displayed.
38
39       Trace max latency: Shows the value of the trace max latency if it is
40       other than zero.
41
42       Kprobes: Shows any kprobes that are defined for tracing.
43
44       Uprobes: Shows any uprobes that are defined for tracing.
45
46       Error log: Dump the content of ftrace error_log file.
47

OPTIONS

49       -B buffer-name
50           Display the status of a given buffer instance. May be specified
51           more than once to display the status of multiple instances.
52
53       -t
54           If -B is also specified, show the status of the top level tracing
55           directory as well as the instance(s).
56
57       -o
58           Display the all the options along with their values. If they start
59           with "no", then the option is disabled.
60

SEE ALSO

62       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1),
63       trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1),
64       trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-listen(1)
65

AUTHOR

67       Written by Steven Rostedt, <rostedt@goodmis.org[1]>
68

RESOURCES

70       https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/
71

COPYING

73       Copyright (C) 2014 Red Hat, Inc. Free use of this software is granted
74       under the terms of the GNU Public License (GPL).
75

NOTES

77        1. rostedt@goodmis.org
78           mailto:rostedt@goodmis.org
79
80
81
82libtracefs                        07/23/2022                 TRACE-CMD-STAT(1)
Impressum