Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 1:47 AM
Duration
265.28 ms
Status
204
Response Size
32 KB
Error
No

Performance Breakdown

Database
3.9% (5 queries)
View Rendering
13.3%
Application Logic
82.8%
Other Operations
0.0%
Total Operations
14
Slowest Operation
265.28 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 240.2ms 480.4ms 720.6ms 960.8ms

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 27 ms 10.2%
home#api_complex 265 ms 100.0%
home#api_complex 265 ms 100.0%
home#api_complex 265 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... 4 ms 1.5%
users/index 24 ms 9.0%
posts/show 5 ms 1.9%
posts/show 24 ms 9.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 6 ms 2.3%
users/index 34 ms 12.8%
SELECT * FROM users WHERE id = ? 8 ms 3.0%
DELETE FROM comments WHERE created_at < ? 15 ms 5.7%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 4 ms 1.5%
layouts/application 14 ms 5.3%