Next.js Blog Theme

Marc Diaz


## What are cgroups?
Cgroups or control groups allow you to allocate resources like CPU or memory to a group of tasks. For more in depth about cgroups read [this](https://docs.kernel.org/admin-guide/cgroup-v2.html)

## Why would I want to move to cgroupv1
In my case, I wanted to run judge0 on Amazon Linux 2023 but saw this [issue](https://github.com/judge0/judge0/issues/325)

### Disabling on Ubuntu
```
sudo nano /etc/default/grub
# edit this line, and save:
GRUB_CMDLINE_LINUX="systemd.unified_cgroup_hierarchy=0"
sudo update-grub
sudo reboot
```

### Disabling on Amazon Linux
Instead of manually editing the config, I used an EC2 launch template that would create my EC2 instances with cgroupsv1 enabled by default

#### Steps:
- Navigate to EC2 -> Launch Templates
- Pick an Amazon Linux AMI of your choice
- In Advanced details -> User Data paste this in
```
#!/bin/bash
grubby --update-kernel=ALL --args="systemd.unified_cgroup_hierarchy=0"
```

Go back [home](/).


cgroupsv2 might not be compatible with some software packages so this tutorial helps disable that

How to use disable cgroupv2


This is an example post. There's another one [here](/posts/example-post).


Consider that for a moment: everything we see around us is assumed to have had a cause and is contingent upon.

Mental models for designers PART 2

Mental models for designers


Something has always existed. According to physics, there can never be true physical nothingness—though there can be times when existence resembles nothing, such as a vacuum (the state of minimum possible energy) (Phys.org). Creating a space where there are no quantum fluctuations requires an enormous amount of energy, and there would be a remnant of that energy in that space afterwards if the fluctuations were flushed out, plus an unstable environment (1veritasium). Even on computers, deleted data is not actually tossed away, by rather written over.

# h1 Heading

## h2 Heading

### h3 Heading

#### h4 Heading

##### h5 Heading

###### h6 Heading

## Horizontal Rules

---


## Emphasis

**This is bold text**

**This is bold text**

_This is italic text_

_This is italic text_

~~Strikethrough~~

## Blockquotes

> Blockquotes can also be nested...
>
> > ...by using additional greater-than signs right next to each other...
> >
> > > ...or with spaces between arrows.

## Lists

Unordered

- Create a list by starting a line with `+`, `-`, or `*`
- Sub-lists are made by indenting 2 spaces:
  - Marker character change forces new list start:
    - Ac tristique libero volutpat at
    * Facilisis in pretium nisl aliquet
    - Nulla volutpat aliquam velit
- Very easy!

Ordered

1. Lorem ipsum dolor sit amet
2. Consectetur adipiscing elit
3. Integer molestie lorem at massa

4. You can use sequential numbers...
5. ...or keep all the numbers as `1.`

Start numbering with offset:

57. foo
1. bar

## Code

Inline `code`

Indented code

    // Some comments
    line 1 of code
    line 2 of code
    line 3 of code

Block code "fences"

```
Sample text here...
```

Syntax highlighting

```js
var foo = function (bar) {
  return bar++;
};

console.log(foo(5));
```

## Tables

| Option | Description                                                               |
| ------ | ------------------------------------------------------------------------- |
| data   | path to data files to supply the data that will be passed into templates. |
| engine | engine to be used for processing templates. Handlebars is the default.    |
| ext    | extension to be used for dest files.                                      |

Right aligned columns

| Option |                                                               Description |
| -----: | ------------------------------------------------------------------------: |
|   data | path to data files to supply the data that will be passed into templates. |
| engine |    engine to be used for processing templates. Handlebars is the default. |
|    ext |                                      extension to be used for dest files. |

## Links

[link text](http://dev.nodeca.com)

[link with title](http://nodeca.github.io/pica/demo/ "title text!")

Autoconverted link https://github.com/nodeca/pica (enable linkify to see)


Something has always existed. According to physics, there can never be true physical nothingness—though there can be times when existence resembles nothing, such as a vacuum (the state of minimum possible energy) (Phys.org). Creating a space where there are no quantum.

How to create SVG-ready icon symbols in Sketch PART 2


This is an example post, with a [link](https://nextjs.org) and a React component:

The title and description are pulled from the MDX file and processed using `gray-matter`. Additionally, links are rendered using a custom component passed to `next-mdx-remote`.

Go back [home](/).
