Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 12:52 AM
Duration
82.64 ms
Status
204
Response Size
43 KB
Error
No

Performance Breakdown

Database
20.6% (7 queries)
View Rendering
12.9%
Application Logic
66.5%
Other Operations
0.0%
Total Operations
17
Slowest Operation
82.64 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 186.5ms 372.9ms 559.4ms 745.8ms

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
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 27 ms 32.7%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 9 ms 10.9%
home/index 31 ms 37.5%
home#api_complex 83 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... 32 ms 38.7%
SELECT * FROM posts WHERE created_at > ? 30 ms 36.3%
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... 7 ms 8.5%
home/index 19 ms 23.0%
home#api_complex 83 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 14 ms 16.9%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 35 ms 42.4%
posts/show 25 ms 30.3%
home#api_complex 83 ms 100.0%
home#api_complex 83 ms 100.0%
home#api_complex 83 ms 100.0%
home#api_complex 83 ms 100.0%
layouts/application 21 ms 25.4%