Request Details

Route
/api_complex GET
Timestamp
Sep 21, 2026 3:44 PM
Duration
97.84 ms
Status
204
Response Size
31 KB
Error
No

Performance Breakdown

Database
15.0% (6 queries)
View Rendering
41.3%
Application Logic
43.7%
Other Operations
0.0%
Total Operations
17
Slowest Operation
97.84 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 111.9ms 223.8ms 335.8ms 447.7ms

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
posts/show 29 ms 29.6%
home/index 16 ms 16.4%
home#api_complex 98 ms 100.0%
layouts/application 37 ms 37.8%
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... 7 ms 7.2%
users/index 6 ms 6.1%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 1 ms 1.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 11 ms 11.2%
SELECT name FROM users 28 ms 28.6%
home#api_complex 98 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 1 ms 1.0%
posts/show 21 ms 21.5%
home/index 12 ms 12.3%
users/index 21 ms 21.5%
SELECT id, name FROM users WHERE email = ? 19 ms 19.4%
posts/show 23 ms 23.5%
posts/show 20 ms 20.4%