trace-cmd-listen - Man Page

trace-cmd listen -p port [Options]

The trace-cmd(1) listen sets up a port to listen to waiting for connections from other hosts that run trace-cmd-record(1) with the -N option​. When a connection is made, and the remote host sends data, it will create a file called trace​.HOST:PORT​.dat​. Where HOST is the name of the remote host, and PORT is the port that the remote host used to connect with​.

-p port

This option will specify the port to listen to​.

-D

This options causes trace-cmd listen to go into a daemon mode and run in the background​.

-V

Listen on a vsocket instead​. This is useful for tracing between host and guest VMs​.

-d dir

This option specifies a directory to write the data files into​.

-o filename

This option overrides the default trace in the trace​.HOST:PORT​.dat that is created when a remote host connects​.

-l filename

This option writes the output messages to a log file instead of standard output​.

--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 listen --verbose=warning

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)

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

trace-cmd(1), trace-cmd-attach(1), trace-cmd-check-events(1), trace-cmd-clear(1), trace-cmd.dat.v6(5), trace-cmd.dat.v7(5), trace-cmd-extract(1), trace-cmd-hist(1), trace-cmd-list(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-stack(1), trace-cmd-start(1), trace-cmd-stat(1), trace-cmd-stop(1), trace-cmd-stream(1).