Request Details

Route
/api_complex GET
Timestamp
Sep 19, 2026 2:47 AM
Duration
202.77 ms
Status
204
Response Size
71 KB
Error
No

Performance Breakdown

Database
13.3% (9 queries)
View Rendering
12.0%
Application Logic
74.7%
Other Operations
0.0%
Total Operations
19
Slowest Operation
202.77 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 271.3ms 542.5ms 813.8ms 1085.1ms

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 203 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... 7 ms 3.5%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 21 ms 10.4%
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... 16 ms 7.9%
home#api_complex 203 ms 100.0%
posts/show 13 ms 6.4%
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... 19 ms 9.4%
home/index 6 ms 3.0%
users/index 24 ms 11.8%
layouts/application 40 ms 19.7%
SELECT * FROM posts WHERE created_at > ? 3 ms 1.5%
home#api_complex 203 ms 100.0%
SELECT * FROM users WHERE id = ? 7 ms 3.5%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 16 ms 7.9%
posts/show 27 ms 13.3%
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... 34 ms 16.8%
home#api_complex 203 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 21 ms 10.4%
users/index 20 ms 9.9%