Request Details

Route
/ GET
Timestamp
Sep 22, 2026 11:00 PM
Duration
41.08 ms
Status
204
Response Size
21 KB
Error
No

Performance Breakdown

Database
35.7% (7 queries)
View Rendering
29.8%
Application Logic
34.5%
Other Operations
0.0%
Total Operations
12
Slowest Operation
41.08 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 59.5ms 119.1ms 178.6ms 238.2ms

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 name FROM users 14 ms 34.1%
SELECT * FROM users WHERE id = ? 14 ms 34.1%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 5 ms 12.2%
home#index 41 ms 100.0%
layouts/application 17 ms 41.4%
posts/show 30 ms 73.0%
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 24.3%
SELECT name FROM users 1 ms 2.4%
users/index 24 ms 58.4%
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... 20 ms 48.7%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 21 ms 51.1%
home#index 41 ms 100.0%