Request Details

Route
/slow GET
Timestamp
Sep 11, 2026 12:44 PM
Duration
320.43 ms
Status
200
Response Size
110 KB
Error
No

Performance Breakdown

Database
4.8% (7 queries)
View Rendering
11.9%
Application Logic
83.4%
Other Operations
0.0%
Total Operations
26
Slowest Operation
320.43 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 672.5ms 1345.0ms 2017.5ms 2690.0ms

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
posts/show 40 ms 12.5%
posts/show 21 ms 6.6%
home/index 14 ms 4.4%
home/index 36 ms 11.2%
home#slow 320 ms 100.0%
posts/show 23 ms 7.2%
home#slow 320 ms 100.0%
posts/show 21 ms 6.6%
home#slow 320 ms 100.0%
SELECT name FROM users 30 ms 9.4%
users/index 32 ms 10.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 15 ms 4.7%
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... 11 ms 3.4%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 19 ms 5.9%
home#slow 320 ms 100.0%
home#slow 320 ms 100.0%
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... 28 ms 8.7%
home/index 22 ms 6.9%
SELECT * FROM users WHERE id = ? 11 ms 3.4%
home#slow 320 ms 100.0%
users/index 12 ms 3.7%
posts/show 20 ms 6.2%
home#slow 320 ms 100.0%
users/index 40 ms 12.5%
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... 14 ms 4.4%
layouts/application 38 ms 11.9%