Request Details

Route
/slow GET
Timestamp
Sep 15, 2026 10:23 PM
Duration
520.26 ms
Status
200
Response Size
150 KB
Error
No

Performance Breakdown

Database
4.2% (6 queries)
View Rendering
3.8%
Application Logic
92.0%
Other Operations
0.0%
Total Operations
15
Slowest Operation
520.26 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 565.3ms 1130.5ms 1695.8ms 2261.0ms

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
layouts/application 22 ms 4.2%
home/index 9 ms 1.7%
home#slow 520 ms 100.0%
home#slow 520 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 20 ms 3.8%
posts/show 24 ms 4.6%
SELECT * FROM posts WHERE created_at > ? 3 ms 0.6%
SELECT * FROM users WHERE id = ? 22 ms 4.2%
users/index 8 ms 1.5%
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... 22 ms 4.2%
users/index 22 ms 4.2%
home#slow 520 ms 100.0%
SELECT name FROM users 5 ms 1.0%
home#slow 520 ms 100.0%
DELETE FROM posts WHERE id = ? 23 ms 4.4%