'\" t .\" Title: trace-cmd-start .\" Author: [see the "AUTHOR" section] .\" Generator: DocBook XSL Stylesheets v1.79.1 .\" Date: 09/11/2020 .\" Manual: \ \& .\" Source: \ \& .\" Language: English .\" .TH "TRACE\-CMD\-START" "1" "09/11/2020" "\ \&" "\ \&" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" trace-cmd-start \- start the Ftrace Linux kernel tracer without recording .SH "SYNOPSIS" .sp \fBtrace\-cmd start\fR [\fIOPTIONS\fR] .SH "DESCRIPTION" .sp The trace\-cmd(1) start enables all the Ftrace tracing the same way trace\-cmd\-record(1) does\&. The difference is that it does not run threads to create a trace\&.dat file\&. This is useful just to enable Ftrace and you are only interested in the trace after some event has occurred and the trace is stopped\&. Then the trace can be read straight from the Ftrace pseudo file system or can be extracted with trace\-cmd\-extract(1)\&. .SH "OPTIONS" .sp The options are the same as \fItrace\-cmd\-record(1)\fR, except that it does not take options specific to recording (\fB\-s\fR, \fB\-o\fR, \fB\-N\fR, and \fB\-t\fR)\&. .PP \fB\-\-fork\fR .RS 4 This option is only available for trace\-cmd start\&. It tells trace\-cmd to not wait for the process to finish before returning\&. With this option, trace\-cmd start will return right after it forks the process on the command line\&. This option only has an effect if trace\-cmd start also executes a command\&. .RE .SH "SEE ALSO" .sp trace\-cmd(1), trace\-cmd\-record(1), trace\-cmd\-report(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) .SH "AUTHOR" .sp Written by Steven Rostedt, <\m[blue]\fBrostedt@goodmis\&.org\fR\m[]\&\s-2\u[1]\d\s+2> .SH "RESOURCES" .sp git://git\&.kernel\&.org/pub/scm/linux/kernel/git/rostedt/trace\-cmd\&.git .SH "COPYING" .sp Copyright (C) 2010 Red Hat, Inc\&. Free use of this software is granted under the terms of the GNU Public License (GPL)\&. .SH "NOTES" .IP " 1." 4 rostedt@goodmis.org .RS 4 \%mailto:rostedt@goodmis.org .RE