Request Details

Route
/api_complex GET
Timestamp
Sep 11, 2026 1:26 AM
Duration
280.57 ms
Status
200
Response Size
57 KB
Error
No

Performance Breakdown

Database
3.1% (6 queries)
View Rendering
7.6%
Application Logic
89.3%
Other Operations
0.0%
Total Operations
24
Slowest Operation
280.57 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 707.0ms 1414.1ms 2121.1ms 2828.1ms

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
home#api_complex 281 ms 100.0%
home/index 16 ms 5.7%
home#api_complex 281 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 1 ms 0.4%
home#api_complex 281 ms 100.0%
users/index 9 ms 3.2%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 33 ms 11.8%
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... 10 ms 3.6%
home/index 23 ms 8.2%
home/index 35 ms 12.5%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 29 ms 10.3%
home#api_complex 281 ms 100.0%
home#api_complex 281 ms 100.0%
home#api_complex 281 ms 100.0%
home#api_complex 281 ms 100.0%
posts/show 30 ms 10.7%
users/index 21 ms 7.5%
home/index 35 ms 12.5%
users/index 19 ms 6.8%
home#api_complex 281 ms 100.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 3 ms 1.1%
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 3.9%
home/index 28 ms 10.0%
home#api_complex 281 ms 100.0%