lstopo-no-graphics

Display the machine topology in tree format

$ lstopo-no-graphics

$ lstopo-no-graphics --only pu

$ lstopo-no-graphics -p

$ lstopo-no-graphics -h

lstopo-no-graphics [options]

lstopo-no-graphics displays the hardware topology of the system in text format without requiring a graphical display. Part of the hwloc (Hardware Locality) package, it shows the hierarchical structure of CPUs, caches, memory, and I/O devices.
The output shows the system's NUMA nodes, packages (sockets), cores, and processing units (hardware threads) in a tree structure. This information is useful for understanding CPU architecture, cache sharing, and memory locality for performance optimization.
Unlike lstopo, this variant works in console-only environments without X11 or graphical libraries.

--only _type_

Display only objects of the specified type (e.g., pu for processing units)

Display physical indexes instead of logical indexes

Display logical indexes (default)

Hide I/O devices from the output

Hide bridge devices from the output

Display help information

Output detail depends on the kernel's exposure of hardware information. Some virtual machines or containers may show limited topology data. The hwloc library must be installed for this command to be available.

The hwloc project was developed at Inria Bordeaux and the University of Tennessee, first released around 2009. It provides portable abstraction of hierarchical topology information across various operating systems and architectures.

lstopo(1), hwloc-ls(1), lscpu(1), numactl(8)