Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 8:43 AM
Duration
114.66 ms
Status
200
Response Size
26 KB
Error
No

Performance Breakdown

Database
17.8% (9 queries)
View Rendering
8.8%
Application Logic
73.3%
Other Operations
0.0%
Total Operations
19
Slowest Operation
114.66 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 234.5ms 469.0ms 703.5ms 937.9ms

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 created_at > ? 18 ms 15.7%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 34 ms 29.7%
SELECT * FROM posts WHERE created_at > ? 14 ms 12.2%
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... 7 ms 6.1%
layouts/application 11 ms 9.6%
home#api_complex 115 ms 100.0%
home#api_complex 115 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 33 ms 28.8%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 9 ms 7.8%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 13 ms 11.3%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 29 ms 25.3%
layouts/application 21 ms 18.3%
home#api_complex 115 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... 10 ms 8.7%
home#api_complex 115 ms 100.0%
home#api_complex 115 ms 100.0%
home/index 31 ms 27.0%
home/index 20 ms 17.4%
home#api_complex 115 ms 100.0%