Request Details

Route
/api_complex GET
Timestamp
Sep 11, 2026 5:42 AM
Duration
117.23 ms
Status
201
Response Size
67 KB
Error
No

Performance Breakdown

Database
32.1% (9 queries)
View Rendering
38.2%
Application Logic
29.7%
Other Operations
0.0%
Total Operations
17
Slowest Operation
117.23 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 98.8ms 197.6ms 296.4ms 395.2ms

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 15.4%
SELECT name FROM users 9 ms 7.7%
home/index 12 ms 10.2%
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... 13 ms 11.1%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 33 ms 28.1%
users/index 26 ms 22.2%
users/index 30 ms 25.6%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 27 ms 23.0%
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... 1 ms 0.9%
posts/show 14 ms 11.9%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 10 ms 8.5%
home/index 33 ms 28.1%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 14 ms 11.9%
DELETE FROM comments WHERE created_at < ? 7 ms 6.0%
users/index 18 ms 15.4%
home#api_complex 117 ms 100.0%
SELECT id, name, email FROM users WHERE id = ? 13 ms 11.1%