atop ☆

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Description:
Advanced system and process monitor for Linux using process events

Type: Formula | Latest Version: 2.12.1@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: monitoring system-utilities performance logging linux

Install: brew install atop

About:
Atop is a full-performance system monitor for Linux that logs process-level resource usage to disk for historical analysis. It captures a wide variety of metrics including CPU, memory, disk, and network activity, along with kernel-level process events. Its unique event-based logging enables detailed post-mortem troubleshooting of system behavior over time.

Key Features:

Event-based process accounting for granular historical analysis
Integrated logging and replay tools (atop, atopacctd, atopdaily)
Comprehensive resource monitoring: CPU, memory, disk I/O, and network
Interactive, color-coded interface for real-time system inspection

Use Cases:

Post-mortem analysis of system bottlenecks and process behavior
Capacity planning and resource usage auditing over time
Real-time monitoring of high-load production servers

Alternatives:

htop – htop offers a more user-friendly interactive process viewer but lacks atop's historical logging and event-based accounting.
sar (sysstat) – sar provides system-wide historical metrics but does not track individual process events with the same granularity as atop.

License: GPL-2.0-or-later

Dependencies: glib, ncurses, zlib

Bottles available for: arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit
May 14, 2023 1:08pm		0	VERSION_BUMP	2ef32bce
May 14, 2023 12:09pm		0	VERSION_BUMP	b4835794