# 
## What is the `psutil` module?

In Python, **`psutil` (Python system and process utilities)** is a Python package that retrieves information on ongoing processes and system usage (CPU, memory, storage, network, and sensors). It is mostly used for system monitoring, profiling, restricting process resources, and process management.


The module can be installed via `pip`, as follows:

```
pip install psutil
```


## The `cpu_freq` method

The **`cpu_freq` method** returns the CPU frequency as a named tuple with the following attributes:

- **`current`**: This represents the current CPU frequency.
- **`min`**: This represents the minimum CPU frequency.
- **`max`**: This represents the maximum CPU frequency.

All attributes above are reported in `Mhz`. If `min` and `max` values cannot be determined, they are set to zero.

## Syntax

```
psutil.cpu_freq(percpu=False)
```

- **`percpu`**: We use this if the system supports the per-CPU frequency. Setting `percpu` to `True` makes the method return the CPU frequency of every CPU.

The method has no parameters.

## Code

import psutil

print("The CPU frequency of the current CPU:")
print(psutil.cpu_freq())

print("The CPU frequency of all the CPUs:")
print(psutil.cpu_freq(True))

python39

# 
## Explanation

- Line 1: We import the `psutil` module.
- Line 4: We retrieve the CPU frequency of the current CPU.
- Line 8: We retrieve the CPU frequency of all the CPUs.

psutil.tar.gz

What is the psutil.cpu_freq() method?

Psutil retrieves system usage data; cpu_freq returns CPU frequency as a tuple (current, min, max) in MHz.

What is the psutil.cpu_freq() method?

What is the psutil module?

The cpu_freq method

Syntax

Code

Explanation

What is the `psutil` module?

The `cpu_freq` method