Server Tool · Real-time Metrics

See everything
your server is doing.

PetaMonitor gives you real-time visibility into CPU, RAM, disk and network on every Linux server — with instant alerts, beautiful terminal dashboards and zero runtime dependencies.

Real-time server metrics

CPU load, memory usage, disk I/O, network throughput and process table — updated every second. No Prometheus, no Grafana, no sidecar required.

Download PetaMonitor Documentation ›

#PetaMonitor #ServerMetrics #ZeroDeps

What Is PetaMonitor

Server observability
without the stack.

Most monitoring solutions require you to install Prometheus, configure exporters, spin up Grafana and maintain a separate metrics infrastructure. PetaMonitor is a single binary that gives you everything you need — directly in your terminal or via a lightweight web dashboard on port 7476.

It reads directly from /proc and /sys — no agents, no daemons beyond the one process, no network calls. It works on every Linux distribution from the moment it's installed.

CPU — per-core load, steal time, iowait, temperature
Memory — used, cached, buffers, swap, pressure
Disk — read/write throughput, IOPS, latency per device
Network — per-interface bandwidth, packets, errors, drops
Processes — top consumers sorted by CPU or memory
Alerts — threshold-based Slack, Discord or email notifications
History — 30-day rolling metrics stored locally

petamonitor — live dashboard 1s refresh

PetaMonitor v1.0 · prod-server-01 · 14:22:38
─────────────────────────────────────────

CPU core0 ████████░░ 78% · core1 ████░░░░░░ 42%
core2 ██████░░░░ 61% · core3 ███░░░░░░░ 28%
avg ████████░░ 52% iowait: 3.1%

MEM used ██████████ 6.2 / 8 GB (77%)
cache 2.1 GB · swap 0 MB used

DSK sda read 142 MB/s write 38 MB/s lat 1.2ms
nvme0 read 892 MB/s write 420 MB/s lat 0.1ms

NET eth0 rx ↓ 24 MB/s tx ↑ 8 MB/s err 0

TOP nginx 12.4% cpu · 128 MB mem
postgres 8.1% cpu · 512 MB mem
node 4.2% cpu · 96 MB mem

● All thresholds OK · Alerts: 0 active

Features

Everything you need
to observe your servers.

Real-time Dashboard

Full-screen terminal dashboard updated every second. CPU, memory, disk, network and processes at a glance.

Threshold Alerts

Set CPU, memory or disk thresholds and get instant Slack, Discord or email alerts the moment they are crossed.

Web Dashboard

Lightweight web UI on localhost:7476 with historical charts. No JavaScript frameworks — pure HTML.

30-day History

Metrics stored locally in a compact binary format. Query historical data with petamonitor history.

Multi-server

Monitor multiple servers from one central view. SSH-based aggregation — no agent ports required on remote hosts.

Prometheus Export

Optional /metrics endpoint compatible with Prometheus and Grafana if you need to integrate with an existing stack.

Installation

Install PetaMonitor.

Install via package manager

bash
# Ubuntu / Debian
$ sudo apt install petamonitor

# Arch
$ yay -S petamonitor

# RHEL / Fedora
$ sudo dnf install petamonitor

Enable and start

bash
$ sudo systemctl enable --now petamonitor
✓ Active · Web UI: http://localhost:7476

✓

Launch the dashboard

bash
$ petamonitor   # full-screen terminal dashboard
$ petamonitor web # open browser dashboard

Configuration

Config: /etc/petacomm/monitor.conf

Key	Default	Description
refresh_sec	1	Dashboard refresh interval in seconds
cpu_alert	90	CPU % threshold for alert
mem_alert	90	Memory % threshold for alert
disk_alert	85	Disk usage % threshold for alert
web_port	7476	Web dashboard port
history_days	30	How many days of metrics to retain

UbuntuDebianArchRHELFedoraAlpine+12 more

See everythingyour server is doing.

Server observabilitywithout the stack.

Everything you needto observe your servers.