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https://github.com/hgn/monetta
HTTP Monitoring Server/Client for Systemd based Systems
https://github.com/hgn/monetta
cpu-monitoring embedded interrupts journalctl linux logger logging monitoring process-monitor processing systemd
Last synced: about 2 months ago
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HTTP Monitoring Server/Client for Systemd based Systems
- Host: GitHub
- URL: https://github.com/hgn/monetta
- Owner: hgn
- Created: 2017-07-19T20:50:35.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2021-02-26T02:13:51.000Z (almost 4 years ago)
- Last Synced: 2024-04-14T15:16:01.519Z (10 months ago)
- Topics: cpu-monitoring, embedded, interrupts, journalctl, linux, logger, logging, monitoring, process-monitor, processing, systemd
- Language: Python
- Homepage:
- Size: 1.52 MB
- Stars: 5
- Watchers: 4
- Forks: 0
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Monetta - Linux Monitoring Daemon
A Lightweight1 Logging and System Monitoring Web Server
> 1lightweight in the sense that required processing operations are
> shifted to browser side. E.g. journal data is directly tailloged from
> `journal -f json` and piped into a websocket to the client - no intermediate
> processing. Open files within `/proc` cannot be optimized out (though, if tab
> is not active, no data is gathered)
## Installation
```shell
# download this package
git clone https://github.com/hgn/monetta.git
cd monetta
# aiohttp package is required (python webserver)
pip install -f requirements.txt
# monetta is using python binding to log
# into journal
aptitude install python3-systemd
# start the server
./run.py -f assets/monetta.conf
# open your browser -> http://localhost:8080/
```
## Journal Tab
Displays Systemd journal information. Some filters are available. Journal can
also be downloaded as JSON or Syslog format (you can even wget the both formats
if you want).
## Utilization Tab
Focus on life data of the system. Update interval is one second.
- **Avg Run [µs]** average time spent on the CPU until scheduled out
- **Avg Wait [µs]** average time spent waiting on a runqueue until scheduled in
- **Scheduled [/s]** How often this process is switched into. See function
[prepare_task_switch()](https://elixir.bootlin.com/linux/v5.2/source/kernel/sched/core.c#L2597).
Which will call `sched_info_switch()`. The number of context switches it divided by interval to
get them per second. Or other: number of timeslices run on this cpu per seconds.
## Process Tab
Provides static data of an process. The page is updated rarely (every 10 seconds).
## IRQ Tab
Updated every second and display all interrupt related data, including affinity mask.
## Problem Statement
Every mid-size and larger project - including embedded projects - requires at
least a logging infrastructure. Piping the logging data via netcat to a client
written in QT is fine but has drawbacks: cross platform limitations, software
distribution, stable and and backward compatible APIs to serve old clients,
writing nice GUIs, etc.
Monetta try to address this problem by using modern web technologies and
simultaneously try to be resource friendly - at least try to do so:
```
USS PSS RSS
23264 24320 29404
```
Monetta is released under a liberal licence - use it in your project without
any pain!
## Goals and Paradigms
- Targeted for Embedded Environments
- Shift computational tasks to the client (web browser), the server provide raw values
- Stick with Systemd and Journalctl
- Reduce external dependencies - just standard Python, aiohttp and python3-systemd
- If no client is connected the service should idle 100%
# Installation
Debian based distribution:
```
aptitude install python3-systemd
```