The same models are shared among requests, so, it's not one model per request, or one per user or something similar.

Let's imagine that loading the model can **take quite some time**, because it has to read a lot of **data from disk**. So you don't want to do it for every request.

* <abbr title="Mozilla Developer Network: documentation for developers, written by the Firefox people">MDN</abbr>
* <abbr title="Input/Output: disk reading or writing, network communications.">I/O</abbr>.

////

//// tab | Info

"title" attributes of "abbr" elements are translated following some specific instructions.

For example, they don't have an `await file.read()`, or `async for chunk in file`.

And in many cases, reading them would be a blocking operation (that could block the event loop), because they are read from disk or from the network.

/// info

The example above is actually an exception, because the `io.BytesIO` object is already in memory, so reading it won't block anything.

* You don't have to use `File()` in the default value of the parameter.
* It uses a "spooled" file:
    * A file stored in memory up to a maximum size limit, and after passing this limit it will be stored in disk.
* This means that it will work well for large files like images, videos, large binaries, etc. without consuming all the memory.
* You can get metadata from the uploaded file.

* the data from the client to be sent through the network
* the data sent by your program to be received by the client through the network
* the contents of a file in the disk to be read by the system and given to your program
* the contents your program gave to the system to be written to disk
* a remote API operation
* a database operation to finish
* a database query to return the results
* etc.

In that case, it could be better to have only 2 servers and use a higher percentage of their resources (CPU, memory, disk, network bandwidth, etc).

### Creating the `Settings` only once with `lru_cache` { #creating-the-settings-only-once-with-lru-cache }

Reading a file from disk is normally a costly (slow) operation, so you probably want to do it only once and then reuse the same settings object, instead of reading it for each request.

But every time we do:

```Python
Settings()
```

- Improved the `FreeDiskSpaceFailed` warning event to provide more actionable details when image garbage collection fails to free enough disk space. Example: `Insufficient free disk space on the node's image filesystem (95.0% of 10.0 GiB used). Failed to free sufficient space by deleting unused images. Consider resizing the disk or deleting unused files.`. ([#132578](https://github.com/kubernetes/kubernetes/pull/132578), [@drigz](https://github.com/drigz))

Result:

```
<abbr title="{full phrase} - {translation of full phrase}: {translation of other information}">{abbreviation}</abbr>
```

Examples:

Source (English):

```
<abbr title="Input/Output: disk reading or writing, network communication.">I/O</abbr>
<abbr title="Content Delivery Network: service, that provides static files.">CDN</abbr>
<abbr title="Integrated Development Environment: similar to a code editor">IDE</abbr>

   *       implementation will effectively put the whole file in memory. On many systems with paging
   *       and virtual memory, this is not a problem - because it is mapped read-only, the kernel
   *       can always page it to disk "for free". However, on systems where killing processes
   *       happens all the time in normal conditions (i.e., android) the OS must make a tradeoff