Request Details

Route
/ GET
Timestamp
Sep 22, 2026 1:47 PM
Duration
143.72 ms
Status
204
Response Size
13 KB
Error
No

Performance Breakdown

Database
9.0% (5 queries)
View Rendering
7.4%
Application Logic
83.6%
Other Operations
0.0%
Total Operations
14
Slowest Operation
143.72 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 257.8ms 515.7ms 773.5ms 1031.3ms

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 * FROM posts WHERE created_at > ? 27 ms 18.8%
posts/show 13 ms 9.0%
home/index 26 ms 18.1%
home#index 144 ms 100.0%
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... 27 ms 18.8%
home#index 144 ms 100.0%
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 > ? 10 ms 7.0%
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 > ? 13 ms 9.0%
home#index 144 ms 100.0%
home#index 144 ms 100.0%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 16 ms 11.1%
home#index 144 ms 100.0%
users/index 37 ms 25.7%
home#index 144 ms 100.0%