Request Details

Route
/ GET
Timestamp
Sep 22, 2026 3:27 AM
Duration
148.95 ms
Status
400
Response Size
2.2 KB
Error
No

Performance Breakdown

Database
10.3% (4 queries)
View Rendering
5.8%
Application Logic
84.0%
Other Operations
0.0%
Total Operations
12
Slowest Operation
148.95 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 221.7ms 443.4ms 665.1ms 886.7ms

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 users WHERE id = ? 18 ms 12.1%
home#index 149 ms 100.0%
users/index 8 ms 5.4%
users/index 33 ms 22.2%
home#index 149 ms 100.0%
layouts/application 10 ms 6.7%
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... 16 ms 10.7%
SELECT * FROM posts WHERE created_at > ? 25 ms 16.8%
home#index 149 ms 100.0%
home#index 149 ms 100.0%
home#index 149 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 > ? 32 ms 21.5%