Request Details

Route
/api_complex GET
Timestamp
Sep 14, 2026 4:49 AM
Duration
258.83 ms
Status
201
Response Size
65 KB
Error
No

Performance Breakdown

Database
10.6% (6 queries)
View Rendering
5.9%
Application Logic
83.5%
Other Operations
0.0%
Total Operations
14
Slowest Operation
258.83 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 309.8ms 619.7ms 929.5ms 1239.3ms

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 259 ms 100.0%
users/index 35 ms 13.5%
DELETE FROM comments WHERE created_at < ? 13 ms 5.0%
home#api_complex 259 ms 100.0%
home/index 23 ms 8.9%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 28 ms 10.8%
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... 34 ms 13.1%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 23 ms 8.9%
home#api_complex 259 ms 100.0%
users/index 7 ms 2.7%
home#api_complex 259 ms 100.0%
home/index 8 ms 3.1%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 28 ms 10.8%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 5 ms 1.9%