Request Details

Route
/slow GET
Timestamp
Sep 10, 2026 12:11 PM
Duration
679.26 ms
Status
200
Response Size
92 KB
Error
No

Performance Breakdown

Database
1.5% (6 queries)
View Rendering
5.8%
Application Logic
92.7%
Other Operations
0.0%
Total Operations
30
Slowest Operation
679.26 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 1648.8ms 3297.7ms 4946.5ms 6595.4ms

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
home#slow 679 ms 100.0%
home#slow 679 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 16 ms 2.4%
layouts/application 31 ms 4.6%
SELECT name FROM users 15 ms 2.2%
layouts/application 30 ms 4.4%
SELECT * FROM users WHERE id = ? 26 ms 3.8%
layouts/application 32 ms 4.7%
home#slow 679 ms 100.0%
layouts/application 34 ms 5.0%
layouts/application 35 ms 5.2%
posts/show 8 ms 1.2%
home#slow 679 ms 100.0%
home#slow 679 ms 100.0%
posts/show 15 ms 2.2%
SELECT * FROM users WHERE id = ? 26 ms 3.8%
home#slow 679 ms 100.0%
home#slow 679 ms 100.0%
users/index 28 ms 4.1%
posts/show 25 ms 3.7%
layouts/application 6 ms 0.9%
layouts/application 29 ms 4.3%
layouts/application 34 ms 5.0%
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... 11 ms 1.6%
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... 4 ms 0.6%
users/index 40 ms 5.9%
home/index 9 ms 1.3%
home#slow 679 ms 100.0%
layouts/application 28 ms 4.1%
home#slow 679 ms 100.0%