github.com/containers/podman/v5@v5.1.0-rc1/docs/source/markdown/options/shm-size-systemd.md (about)

     1  ####> This option file is used in:
     2  ####>   podman create, pod clone, pod create, run
     3  ####> If file is edited, make sure the changes
     4  ####> are applicable to all of those.
     5  #### **--shm-size-systemd**=*number[unit]*
     6  
     7  Size of systemd-specific tmpfs mounts such as /run, /run/lock, /var/log/journal and /tmp.
     8  A _unit_ can be **b** (bytes), **k** (kibibytes), **m** (mebibytes), or **g** (gibibytes).
     9  If the unit is omitted, the system uses bytes. If the size is omitted, the default is **64m**.
    10  When _size_ is **0**, the usage is limited to 50% of the host's available memory.