github.com/nf/docker@v1.8.1/docs/reference/commandline/pause.md (about)

     1  <!--[metadata]>
     2  +++
     3  title = "pause"
     4  description = "The pause command description and usage"
     5  keywords = ["cgroups, container, suspend, SIGSTOP"]
     6  [menu.main]
     7  parent = "smn_cli"
     8  weight=1
     9  +++
    10  <![end-metadata]-->
    11  
    12  # pause
    13  
    14      Usage: docker pause CONTAINER [CONTAINER...]
    15  
    16      Pause all processes within a container
    17  
    18  The `docker pause` command uses the cgroups freezer to suspend all processes in
    19  a container. Traditionally, when suspending a process the `SIGSTOP` signal is
    20  used, which is observable by the process being suspended. With the cgroups freezer
    21  the process is unaware, and unable to capture, that it is being suspended,
    22  and subsequently resumed.
    23  
    24  See the
    25  [cgroups freezer documentation](https://www.kernel.org/doc/Documentation/cgroups/freezer-subsystem.txt)
    26  for further details.
    27