---
title: "Speed Up Your Rails App by Squashing N+1 Queries"
url: https://daily.dev/posts/speed-up-your-rails-app-by-squashing-n-1-queries-ptt97gwbo
source_url: https://hashrocket.com/blog/posts/speed-up-your-rails-app-by-squashing-n-1-queries
type: article
source: "Hashrocket"
published: 2025-11-20T14:40:10.146Z
updated: 2025-11-20T14:40:30.105Z
tags: ["performance", "database", "ruby", "rails"]
reading_time: 6
upvotes: 0
comments: 0
language: en
---

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# Speed Up Your Rails App by Squashing N+1 Queries

**[Hashrocket](https://daily.dev/sources/hashrocket)** · 6 min read · 0 upvotes · 0 comments

## Summary

N+1 queries occur when iterating over ActiveRecord models while accessing associated records, causing exponential database queries. Using Rails' .includes method to eagerly load associations can dramatically reduce query count—from 1,101 queries down to just 3 in a real example. This optimization technique reduced page load time by 87%, from 1.007s to 0.126s, by bulk-loading related records upfront instead of querying them individually.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://hashrocket.com/blog/posts/speed-up-your-rails-app-by-squashing-n-1-queries>

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---

Tags: [#performance](https://daily.dev/tags/performance), [#database](https://daily.dev/tags/database), [#ruby](https://daily.dev/tags/ruby), [#rails](https://daily.dev/tags/rails)

[View this post on daily.dev](https://daily.dev/posts/speed-up-your-rails-app-by-squashing-n-1-queries-ptt97gwbo)