Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 10:44 AM
Duration
209.38 ms
Status
200
Response Size
55 KB
Error
No

Performance Breakdown

Database
34.1% (4 queries)
View Rendering
65.9%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
11
Slowest Operation
35.0 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
View
Database
0.0ms 56.5ms 113.0ms 169.5ms 226.0ms

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/index 19 ms 9.1%
posts/show 11 ms 5.3%
layouts/application 7 ms 3.3%
users/index 30 ms 14.3%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 17 ms 8.1%
home/index 14 ms 6.7%
users/index 35 ms 16.7%
users/index 33 ms 15.8%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 27 ms 12.9%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 30 ms 14.3%
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 > ? 3 ms 1.4%