https://github.com/saravanabalagi/pid_usage
Lightweight CLI Utility written in C to find current CPU Utilization, RAM Usage and Virtual Memory Usage for a given PID and all it's subprocesses
https://github.com/saravanabalagi/pid_usage
cli-utility cpu-monitoring cpu-utilization process-monitor ram-monitoring ram-usage subprocess-monitoring
Last synced: about 2 months ago
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Lightweight CLI Utility written in C to find current CPU Utilization, RAM Usage and Virtual Memory Usage for a given PID and all it's subprocesses
- Host: GitHub
- URL: https://github.com/saravanabalagi/pid_usage
- Owner: saravanabalagi
- License: mit
- Created: 2020-04-24T21:48:49.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2020-05-25T10:55:12.000Z (about 5 years ago)
- Last Synced: 2025-02-18T20:06:45.087Z (3 months ago)
- Topics: cli-utility, cpu-monitoring, cpu-utilization, process-monitor, ram-monitoring, ram-usage, subprocess-monitoring
- Language: C
- Homepage:
- Size: 143 KB
- Stars: 3
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
## PID Usage
[](https://snapcraft.io/pid-usage)
[](https://snapcraft.io/pid-usage)
A tiny command line utility to get current CPU Utilization, RAM Usage and Virtual Memory Usage of a process
(including all its subprocesses) in CSV Format. It's particularly more useful if you're looking to save as a
CSV file for making graphs.
```sh
pid_usage --pid=5432 master ✭
CPU %, Virtual Memory, Resident Memory
10.0%, 4601 MiB, 154 MiB
```
## Options
You can customlize the following options:
```
-i, --interval=I (float) Calculate usage every I seconds
--no-header Don't print the header row
-p, --pid=PID (int) PID of program to monitor
-r, --repeat=R (int) Program prints output R times
-?, --help Give this help list
--usage Give a short usage message
-V, --version Print program version
```
## Installation
#### Install from Snap Store
[](https://snapcraft.io/pid-usage)
#### Install from PPA
```sh
sudo add-apt-repository ppa:saravanabalagi/linux-utils
sudo apt update
sudo apt install pid-usage
```
#### Download Binary
Installation instructions for current user, all users, and for temporary execution
can be found in [INSTALL.md](INSTALL.md)
## What's wrong with `ps` and `top`?
Firstly, `cpu%` values from `ps` and `top` are not [similar](https://unix.stackexchange.com/q/58539/278762).
`ps` gives total cpu usage as the percentage of time spent running during the entire lifetime of a process.
This value is not current cpu utilization value. `top` gives correct current CPU utilization for a given process.
Secondly, CPU Utilization and memory values of a process in both `ps` and `top` do not include that of it's subprocesses.
For total cpu utilization, during the first time, `top` gives cpu usage since boot.
After that, it gives cpu usage since the last queried time.
This means when you use `top` and parse the cpu percent using `awk`
in your shell script inside a for loop, the values you get won't be the current cpu utilization!
## Contribution
Pull requests are very welcome.
1. Fork the repo
1. Create new branch with feature name as branch name
1. Check if things work with a jupyter notebook
1. Raise a pull request
## Licence
See attached [Licence](LICENSE)