Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 9:57 AM
Duration
136.51 ms
Status
200
Response Size
36 KB
Error
No

Performance Breakdown

Database
20.5% (10 queries)
View Rendering
16.3%
Application Logic
63.2%
Other Operations
0.0%
Total Operations
25
Slowest Operation
136.51 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 270.1ms 540.3ms 810.4ms 1080.6ms

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
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 34 ms 24.9%
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... 22 ms 16.1%
posts/show 7 ms 5.1%
SELECT * FROM posts WHERE created_at > ? 28 ms 20.5%
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... 7 ms 5.1%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 17 ms 12.5%
home#api_complex 137 ms 100.0%
home#api_complex 137 ms 100.0%
home/index 13 ms 9.5%
home#api_complex 137 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 12 ms 8.8%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 34 ms 24.9%
home#api_complex 137 ms 100.0%
users/index 8 ms 5.9%
home#api_complex 137 ms 100.0%
layouts/application 14 ms 10.3%
layouts/application 19 ms 13.9%
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... 8 ms 5.9%
home/index 17 ms 12.5%
layouts/application 18 ms 13.2%
layouts/application 33 ms 24.2%
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... 28 ms 20.5%
layouts/application 37 ms 27.1%
home/index 10 ms 7.3%
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... 32 ms 23.4%