Request Details

Route
/ GET
Timestamp
Sep 19, 2026 4:16 AM
Duration
96.03 ms
Status
204
Response Size
9.9 KB
Error
No

Performance Breakdown

Database
26.5% (9 queries)
View Rendering
7.7%
Application Logic
65.8%
Other Operations
0.0%
Total Operations
15
Slowest Operation
96.03 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 146.0ms 292.1ms 438.1ms 584.1ms

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 user_id = ? ORDER BY created_at DESC LIMIT ? 21 ms 21.9%
posts/show 35 ms 36.4%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 15 ms 15.6%
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 > ? 31 ms 32.3%
SELECT name FROM users 23 ms 24.0%
home#index 96 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... 5 ms 5.2%
home#index 96 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 8 ms 8.3%
home#index 96 ms 100.0%
home#index 96 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 8 ms 8.3%
SELECT * FROM users WHERE id = ? 13 ms 13.5%
DELETE FROM comments WHERE created_at < ? 31 ms 32.3%
layouts/application 10 ms 10.4%