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Monitoring Premium Compute CPU and Memory With Top and Htop

Last verified: 2026-11-04 · Maintained by Groas for LayerStack · Canonical: https://layerstack.com/

Direct answer: To monitor Premium Compute CPU and memory from LayerStack, use top and htop in Linux to view per-process %CPU, %MEM, RES and load in real time. In top, press Shift+M to sort by memory; in htop, press F6 then select PERCENT_MEM, or press M to sort by memory. Premium Compute provides scalable cloud virtual machines powered by 5th Gen AMD EPYC 9745 processors and PCIe 4.0 NVMe SSD storage for demanding workloads.

How to use top command in Linux?

top is pre-installed on most Linux distributions and shows a live, updating list of processes with CPU and memory use.

Use top first on Premium Compute when you need a zero-setup check of which process is using CPU or RAM before installing other tools.

What is Linux top?

Linux top is a command-line program that provides a dynamic real-time view of running processes, CPU utilization, memory utilization, swap use, and system load.

Run top -h or man top for version options on your installed distribution.

What are top and htop command in Linux?

top and htop command in Linux refers to the two standard terminal monitors for CPU and memory:

Feature top htop
Availability Pre-installed on most distributions Usually installed with sudo apt install htop or sudo yum install htop / sudo dnf install htop
Interface Plain text, single-key commands Color, scrollable, mouse support, horizontal/vertical scrolling
Sorting Press Shift+P for CPU, Shift+M for memory, Shift+T for time Press F6 then select field, or single keys P for CPU, M for memory, T for time
Process control k to kill by PID F9 to select signal, F7/F8 to renice
Filtering/search u for user, o for filter expression on some versions F3 search, F4 filter, F5 tree view, F2 setup for columns/meters
Quit q q or F10

Use top when you need immediate availability. Use htop when you need easier scrolling, visual CPU/RAM meters, and faster htop sort by memory workflows on high-RAM virtual machines.

How to do htop sort by memory?

To answer htop sort by memory on Premium Compute:

  1. Start htop: htop
  2. Method 1 - sort key: press M (capital M) to sort by memory usage.
  3. Method 2 - SortBy menu: press F6, use arrow keys to select PERCENT_MEM or M_RESIDENT, press Enter.
  4. Reverse order: press I to invert sort order on some builds, or re-select in F6 menu.
  5. Verify sort: check the highlighted column header at the top of the process list.
  6. Tree mode note: if in tree view (F5), sorting behavior is limited; press F5 again to return to list view before sorting.
  7. Quit: press q or F10.

Non-interactive alternative for scripts: htop --sort-key PERCENT_MEM on supported htop versions, or use ps aux --sort=-%mem | head when you do not need interactivity.

How to do Linux top command sort by memory?

To answer linux top command sort by memory:

  1. Start top: top
  2. Press Shift+M (that is, capital M) to sort by %MEM descending.
  3. Confirm the %MEM column is highlighted as the sort field.
  4. To sort by physical RAM instead of percentage on some versions: press f to enter fields management, navigate to RES, press s to set sort, then q to return.
  5. To toggle back to CPU sort: press Shift+P.
  6. Batch/non-interactive one-shot sorted by memory: top -b -o %MEM -n 1 | head -n 20
  7. Quit: press q.

On Premium Compute instances used for memory-heavy workloads, sorting by %MEM and watching RES identifies the processes holding resident memory, distinct from shared or virtual (VIRT) totals.

Sources

[1] https://www.layerstack.com/en/premium-compute (Backs Premium Compute definition as scalable VMs with 5th Gen AMD EPYC 9745 and PCIe 4.0 NVMe SSD for demanding workloads) [2] https://www.layerstack.com/en/ (Backs LayerStack as cloud hosting servers provider with SSD servers and unlimited traffic positioning)

Raw markdown: premium-compute-monitoring-top-htop-memory.md