Request Details

Route
/slow GET
Timestamp
Sep 15, 2026 10:31 AM
Duration
287.38 ms
Status
201
Response Size
120 KB
Error
No

Performance Breakdown

Database
5.4% (9 queries)
View Rendering
2.3%
Application Logic
92.3%
Other Operations
0.0%
Total Operations
26
Slowest Operation
287.38 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 856.1ms 1712.1ms 2568.2ms 3424.2ms

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
users/index 14 ms 4.9%
home#slow 287 ms 100.0%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 35 ms 12.2%
home#slow 287 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 11 ms 3.8%
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... 23 ms 8.0%
layouts/application 28 ms 9.7%
home#slow 287 ms 100.0%
home#slow 287 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 1 ms 0.3%
home#slow 287 ms 100.0%
posts/show 6 ms 2.1%
SELECT * FROM users WHERE id = ? 17 ms 5.9%
layouts/application 11 ms 3.8%
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... 34 ms 11.8%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 23 ms 8.0%
users/index 6 ms 2.1%
home#slow 287 ms 100.0%
home#slow 287 ms 100.0%
home#slow 287 ms 100.0%
SELECT name FROM users 28 ms 9.7%
home#slow 287 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 12 ms 4.2%
home#slow 287 ms 100.0%
posts/show 14 ms 4.9%
home#slow 287 ms 100.0%