htop Explained: Monitor Linux Processes Like a Pro

Installing and launching htop

A live, colour-coded map of your server: CPU cores as bars (green user time, red system, blue nice'd), memory and swap gauges, load average, and a scrollable process table where rows name exactly what is consuming what. Compared to its ancestor top, htop adds vertical scrolling, mouse support, tree view, and sorting you can do with a keypress instead of memorising flags.

Install it with sudo apt install htop (Ubuntu/Debian) or dnf install htop (RHEL-family) — often pre-installed on VPS images — and run htop. The two numbers worth learning first: load average (against core count) and RES memory (actual usage, not the terrifying VIRT). Server access basics live in the connect with PuTTY guide, and the boxes this runs on are the VPS server tiers.

The display decoded — bars, columns, meters

On htop, the honest summary is that defaults matter more than brand names — a well-set budget plan outranks a mis-tuned premium one. WebJi® documents its defaults openly and adjusts them per ticket when workloads need it.

Load average — the right way to read it

Load average — the right way to read it. Do the change this heading names on one site first, then check it in a private browser window or in the mail client, depending on the topic. Change one setting at a time, and undo it if the result is wrong before you try the next. If you want the Jaipur desk to look with you, email support@webji.services — that mailbox is staffed 24/7 in Hindi and English. Phone +91 141 4941811 is business hours only.

Memory columns — VIRT vs RES vs SHR

Memory columns and VIRT are not the same product. Memory columns is the option with less for you to operate. VIRT is the option with more control, and more that you have to look after. Choose by what happens when it breaks at night, and by the INR figure on this page. Email support@webji.services if you want that choice made against your actual site.

Everyday actions — sort, search, tree, kill

On VIRT/RES/SHR memory, the honest summary is that defaults matter more than brand names — a well-set budget plan outranks a mis-tuned premium one. WebJi® documents its defaults openly and adjusts them per ticket when workloads need it.

Diagnosing a slow VPS with htop (walkthrough)

The walkthrough: a slow VPS. Step 1 — load 9.5 on a 2-core box (4.75 per core; laggy SSH confirms saturation). Step 2 — F6, sort by CPU%: a single process eating both cores names itself immediately — often a PHP worker storm or a backup job that forgot its schedule. Step 3 — if CPU looks innocent, F6 by PERCENT_MEM: memory pressure with heavy swap activity points at a database or an app leaking.

Step 4 — F4 to filter for suspects (php, mysql, node) and watch whether the culprit is steady or cyclical. Step 5 — F9 to kill the offender gently (SIGTERM), or F5 tree view to find its parent before you do. Step 6 — confirm load decays and re-run the workload. Ten minutes of htop answers what a support ticket takes a day to ask.

htop vs top vs glances

htop and top are not the same product. htop is the option with less for you to operate. top is the option with more control, and more that you have to look after. Choose by what happens when it breaks at night, and by the INR figure on this page. Email support@webji.services if you want that choice made against your actual site.