Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 10:20 AM
Duration
268.64 ms
Status
204
Response Size
24 KB
Error
No

Performance Breakdown

Database
6.8% (6 queries)
View Rendering
12.1%
Application Logic
81.0%
Other Operations
0.0%
Total Operations
25
Slowest Operation
268.64 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 580.4ms 1160.7ms 1741.1ms 2321.5ms

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
DELETE FROM comments WHERE created_at < ? 25 ms 9.3%
users/index 26 ms 9.7%
home/index 35 ms 13.0%
home#api_complex 269 ms 100.0%
home/index 33 ms 12.3%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 32 ms 11.9%
home#api_complex 269 ms 100.0%
home#api_complex 269 ms 100.0%
home/index 35 ms 13.0%
home/index 7 ms 2.6%
home#api_complex 269 ms 100.0%
users/index 6 ms 2.2%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 19 ms 7.1%
users/index 36 ms 13.4%
home/index 33 ms 12.3%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 31 ms 11.5%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 34 ms 12.7%
home#api_complex 269 ms 100.0%
home#api_complex 269 ms 100.0%
posts/show 7 ms 2.6%
posts/show 11 ms 4.1%
home/index 23 ms 8.6%
users/index 30 ms 11.2%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 18 ms 6.7%
home#api_complex 269 ms 100.0%