Request Details

Route
/api_complex GET
Timestamp
Sep 17, 2026 1:47 AM
Duration
166.67 ms
Status
201
Response Size
24 KB
Error
No

Performance Breakdown

Database
9.3% (7 queries)
View Rendering
13.2%
Application Logic
77.5%
Other Operations
0.0%
Total Operations
22
Slowest Operation
166.67 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 322.5ms 645.0ms 967.5ms 1290.0ms

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
layouts/application 40 ms 24.0%
layouts/application 24 ms 14.4%
home#api_complex 167 ms 100.0%
home#api_complex 167 ms 100.0%
users/index 7 ms 4.2%
SELECT id, name, email FROM users WHERE id = ? 14 ms 8.4%
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... 11 ms 6.6%
layouts/application 6 ms 3.6%
home#api_complex 167 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... 28 ms 16.8%
layouts/application 9 ms 5.4%
users/index 28 ms 16.8%
layouts/application 5 ms 3.0%
layouts/application 27 ms 16.2%
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... 25 ms 15.0%
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... 34 ms 20.4%
home#api_complex 167 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 6 ms 3.6%
SELECT * FROM posts WHERE created_at > ? 2 ms 1.2%
layouts/application 24 ms 14.4%
home#api_complex 167 ms 100.0%
home#api_complex 167 ms 100.0%