atop vs System Informer
atop
atoptool.nlSystem Informer
system-informer.comSide by side
| Figure | atop | System Informer |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | — | Yes |
| Linux | Yes | — |
| Plans published | 1 | 1 |
| Spec score · Process Monitoring Software | 7.7 (#12) | 7.3 (#22) |
| Purpose | Atop is an ASCII full-screen performance monitor for Linux that reports system and process activity. | System Informer monitors system resources, helps debug software, and detects malware. |
| Support | The site provides a contact form for the maintainer, Gerlof Langeveld. | The project directs users to GitHub to ask questions, report bugs, or suggest features. |
Plans
In their own words
atop
atop is a free, GPL-licensed performance monitor for Linux. It uses a full-screen ASCII interface to report system and process activity at regular intervals. System-level views cover CPU, memory, swap, disk, and network activity. Process and thread views include CPU use, memory growth, disk use, and other statistics, including consumption by processes that finish during the interval. atop can save compressed raw counters for longer-term analysis, preserving daily logs for 28 days by default. The atopsar command turns those logs into system activity reports. It also reports CPU, memory, disk I/O utilization, and pressure for cgroup v2. An optional netatop kernel module adds per-process and per-thread TCP and UDP packet counts and bandwidth statistics. Displays can use bar graphs or detailed text, with columns adjusting to terminal width. Downloads list source and x86_64 RPM packages for version 2.13.0.
System Informer
System Informer has no write-up on Specifiction yet; its figures are above.