Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 1:12 AM
Duration
248.18 ms
Status
200
Response Size
25 KB
Error
No

Performance Breakdown

Database
7.3% (7 queries)
View Rendering
11.5%
Application Logic
81.2%
Other Operations
0.0%
Total Operations
24
Slowest Operation
248.18 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 458.3ms 916.5ms 1374.8ms 1833.1ms

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 18 ms 7.3%
home#api_complex 248 ms 100.0%
users/index 12 ms 4.8%
home#api_complex 248 ms 100.0%
posts/show 9 ms 3.6%
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... 20 ms 8.1%
posts/show 22 ms 8.9%
home/index 19 ms 7.7%
users/index 9 ms 3.6%
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... 15 ms 6.0%
home#api_complex 248 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... 33 ms 13.3%
home#api_complex 248 ms 100.0%
home#api_complex 248 ms 100.0%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 15 ms 6.0%
SELECT * FROM posts WHERE created_at > ? 30 ms 12.1%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 12 ms 4.8%
home/index 24 ms 9.7%
layouts/application 29 ms 11.7%
home/index 20 ms 8.1%
home#api_complex 248 ms 100.0%
users/index 10 ms 4.0%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 8 ms 3.2%
layouts/application 39 ms 15.7%