Request Details

Route
/ GET
Timestamp
Sep 16, 2026 8:45 PM
Duration
145.33 ms
Status
204
Response Size
10 KB
Error
No

Performance Breakdown

Database
18.9% (6 queries)
View Rendering
19.5%
Application Logic
61.6%
Other Operations
0.0%
Total Operations
15
Slowest Operation
145.33 ms

Request Trace

How to read this

Each row is a layer of your stack. Many short Database bars means N+1 queries — fix with includes(). A wide Action bar with little Database time means slow Ruby code. A wide View bar usually means a partial rendered in a loop.

Action
View
Database
Other
Action
View
Database
0.0ms 177.0ms 354.0ms 531.0ms 708.0ms

Operations

How to use this

Sort by Impact to find your biggest wins. Click any row for details and optimisation suggestions. The same SQL appearing multiple times is an N+1 — fix with includes(). A single operation above 50% impact is your highest priority.

Operation Duration Impact Timeline Actions
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 32 ms 22.0%
home#index 145 ms 100.0%
layouts/application 37 ms 25.5%
home#index 145 ms 100.0%
layouts/application 17 ms 11.7%
layouts/application 29 ms 20.0%
layouts/application 26 ms 17.9%
home#index 145 ms 100.0%
users/index 5 ms 3.4%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 7 ms 4.8%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 23 ms 15.8%
SELECT name FROM users 4 ms 2.8%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 34 ms 23.4%
home/index 24 ms 16.5%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 34 ms 23.4%