Request Details

Route
/api_complex GET
Timestamp
Sep 13, 2026 8:31 AM
Duration
214.07 ms
Status
201
Response Size
71 KB
Error
No

Performance Breakdown

Database
10.6% (8 queries)
View Rendering
18.9%
Application Logic
70.5%
Other Operations
0.0%
Total Operations
17
Slowest Operation
214.07 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 227.8ms 455.6ms 683.4ms 911.2ms

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 user_id = ? ORDER BY created_at DESC LIMIT ? 3 ms 1.4%
SELECT name FROM users 24 ms 11.2%
home/index 32 ms 14.9%
SELECT * FROM posts WHERE created_at > ? 4 ms 1.9%
users/index 20 ms 9.3%
layouts/application 40 ms 18.7%
users/index 32 ms 14.9%
users/index 18 ms 8.4%
home#api_complex 214 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 27 ms 12.6%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 4 ms 1.9%
home#api_complex 214 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 15 ms 7.0%
home#api_complex 214 ms 100.0%
home/index 30 ms 14.0%
SELECT name FROM users 12 ms 5.6%
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... 8 ms 3.7%