Request Details

Route
/slow GET
Timestamp
Sep 14, 2026 2:16 AM
Duration
322.1 ms
Status
200
Response Size
97 KB
Error
No

Performance Breakdown

Database
12.7% (11 queries)
View Rendering
8.8%
Application Logic
78.4%
Other Operations
0.0%
Total Operations
23
Slowest Operation
322.1 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 410.6ms 821.2ms 1231.8ms 1642.4ms

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
DELETE FROM posts WHERE id = ? 26 ms 8.1%
home#slow 322 ms 100.0%
layouts/application 11 ms 3.4%
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... 14 ms 4.3%
home/index 33 ms 10.2%
posts/show 5 ms 1.6%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 28 ms 8.7%
home#slow 322 ms 100.0%
SELECT name FROM users 18 ms 5.6%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 3 ms 0.9%
users/index 32 ms 9.9%
home#slow 322 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 6 ms 1.9%
posts/show 24 ms 7.5%
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... 26 ms 8.1%
home/index 10 ms 3.1%
home#slow 322 ms 100.0%
SELECT name FROM users 32 ms 9.9%
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 6.8%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 17 ms 5.3%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 17 ms 5.3%
home/index 14 ms 4.3%
posts/show 16 ms 5.0%