Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 9:36 AM
Duration
228.47 ms
Status
204
Response Size
60 KB
Error
No

Performance Breakdown

Database
5.7% (8 queries)
View Rendering
2.2%
Application Logic
92.1%
Other Operations
0.0%
Total Operations
20
Slowest Operation
228.47 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 558.3ms 1116.6ms 1674.9ms 2233.2ms

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
home#api_complex 228 ms 100.0%
users/index 29 ms 12.7%
home#api_complex 228 ms 100.0%
home#api_complex 228 ms 100.0%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 3 ms 1.3%
SELECT name FROM users 21 ms 9.2%
home#api_complex 228 ms 100.0%
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... 28 ms 12.3%
home#api_complex 228 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 32 ms 14.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 31 ms 13.6%
home#api_complex 228 ms 100.0%
home/index 11 ms 4.8%
home#api_complex 228 ms 100.0%
users/index 10 ms 4.4%
SELECT * FROM posts WHERE created_at > ? 6 ms 2.6%
home#api_complex 228 ms 100.0%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 3 ms 1.3%
home#api_complex 228 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 3 ms 1.3%