Request Details

Route
/slow GET
Timestamp
Sep 14, 2026 9:39 PM
Duration
204.49 ms
Status
200
Response Size
99 KB
Error
No

Performance Breakdown

Database
10.5% (7 queries)
View Rendering
14.6%
Application Logic
74.9%
Other Operations
0.0%
Total Operations
19
Slowest Operation
204.49 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 341.4ms 682.7ms 1024.1ms 1365.5ms

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 16 ms 7.8%
posts/show 38 ms 18.6%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 23 ms 11.2%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 8 ms 3.9%
home/index 33 ms 16.1%
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... 10 ms 4.9%
home#slow 204 ms 100.0%
home/index 33 ms 16.1%
home#slow 204 ms 100.0%
posts/show 29 ms 14.2%
home#slow 204 ms 100.0%
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... 25 ms 12.2%
posts/show 25 ms 12.2%
home#slow 204 ms 100.0%
home/index 25 ms 12.2%
SELECT id, name, email FROM users WHERE id = ? 31 ms 15.2%
SELECT * FROM posts WHERE created_at > ? 33 ms 16.1%
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... 14 ms 6.8%
home#slow 204 ms 100.0%