CXL-MONITOR(1) cxl Manual CXL-MONITOR(1)

# [NAME](#NAME)

cxl-monitor - Monitor the CXL trace events

# [SYNOPSIS](#SYNOPSIS)

```
cxl monitor [<options>]
```

# [DESCRIPTION](#DESCRIPTION)

cxl-monitor is used for monitoring the CXL trace events emitted by the kernel and convert them to json objects and dumping the json format notifications to standard output or a logfile.

# [EXAMPLES](#EXAMPLES)

Run a monitor as a daemon to monitor events and output to a log file.

```
cxl monitor --daemon --log=/var/log/cxl-monitor.log
```

Run a monitor as a one-shot command and output the notifications to stdio.

```
cxl monitor
```

Run a monitor daemon as a system service

```
systemctl start cxl-monitor.service
```

# [OPTIONS](#OPTIONS)

-l, --log=

Send log messages to the specified destination.

•"&lt;file&gt;": Send log messages to specified &lt;file&gt;.

•"standard": Send messages to standard output.

The default log destination is */var/log/cxl-monitor.log* if "--daemon" is specified, otherwise *standard*. Note that standard and relative path for &lt;file&gt; will not work if "--daemon" is specified.

--daemon

Run a monitor as a daemon.

-v, --verbose

Emit more debug messages

-u, --human

By default the command will output machine-friendly raw-integer data. Instead, with this flag, numbers representing storage size will be formatted as human readable strings with units, other fields are converted to hexadecimal strings.

# [COPYRIGHT](#COPYRIGHT)

Copyright © 2016 - 2022, Intel Corporation. License GPLv2: GNU GPL version 2 &lt;http://gnu.org/licenses/gpl.html&gt;. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

# [SEE ALSO](#SEE_ALSO)

[cxl-list(1)](/man/os/ndctl/cxl-list.1)

2026-10-30 cxl

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Document: cxl-monitor(1) from ndctl 85-r4 (Chainguard OS)
Source: https://github.com/pmem/ndctl