# Last Mile Redis

**URL:** <https://forum.devtalk.com/t/last-mile-redis/13952>\
**Category:** Blogs/Articles/Talks/Podcasts\
**Tags:** redis, in-the-news\
**Created:** [20 July 2021 14:17 UTC](https://forum.devtalk.com/t/last-mile-redis/13952 "2021-07-20T14:17:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![CommunityNews](https://forum.devtalk.com/user_avatar/forum.devtalk.com/communitynews/32/1113_2.png) [@CommunityNews](https://forum.devtalk.com/u/CommunityNews)\
**Post date:** [20 July 2021 14:17 UTC](https://forum.devtalk.com/t/last-mile-redis/13952/1 "2021-07-20T14:17:27Z")

</div>

> Fly runs apps (and databases) close to users, by taking Docker images and transmogrifying them into Firecracker micro-vms, running on our hardware around the world. You should try deploying an app, right now: [it only takes a few minutes](https://fly.io/docs/speedrun/).
> 
> 100 milliseconds is the magic number. For a backend application, a sub-100ms response time is effectively instantaneous, and people love using “instant” apps. Since we’re all dirty capitalists, we’d add: if people love your app, you’ll make more money. But you can also chase sub-100ms for the endorphins.
> 
> When app developers need to shave tens of milliseconds off their request times, they start with their database. But optimizing databases is painful. When it comes to making “things-that-involve-data” fast, it’s easier to add a layer of caching than to make database changes. Even basic cache logic can shave tens of milliseconds off database queries. So backend developers love caches.

Read in full here:

> **[Last Mile Redis](https://fly.io/blog/last-mile-redis/)**
>
> Documentation and guides from the team at Fly.io.

_This thread was posted by one of our members via one of our news source trackers._