Request Details

Route
/slow GET
Timestamp
Sep 23, 2026 1:50 AM
Duration
325.28 ms
Status
201
Response Size
160 KB
Error
No

Performance Breakdown

Database
6.3% (10 queries)
View Rendering
9.9%
Application Logic
83.8%
Other Operations
0.0%
Total Operations
27
Slowest Operation
325.28 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 581.9ms 1163.9ms 1745.8ms 2327.7ms

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
home/index 6 ms 1.8%
layouts/application 26 ms 8.0%
home/index 25 ms 7.7%
home/index 16 ms 4.9%
SELECT * FROM posts WHERE created_at > ? 8 ms 2.5%
home#slow 325 ms 100.0%
home#slow 325 ms 100.0%
home#slow 325 ms 100.0%
posts/show 38 ms 11.7%
layouts/application 36 ms 11.1%
SELECT name FROM users 20 ms 6.1%
home/index 7 ms 2.2%
SELECT * FROM users WHERE id = ? 6 ms 1.8%
layouts/application 14 ms 4.3%
layouts/application 6 ms 1.8%
home#slow 325 ms 100.0%
home#slow 325 ms 100.0%
home#slow 325 ms 100.0%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 13 ms 4.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 27 ms 8.3%
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... 24 ms 7.4%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 1 ms 0.3%
users/index 36 ms 11.1%
SELECT * FROM users WHERE id = ? 9 ms 2.8%
SELECT id, name FROM users WHERE email = ? 22 ms 6.8%
SELECT * FROM posts WHERE created_at > ? 16 ms 4.9%
users/index 20 ms 6.1%