Request Details

Route
/api_complex GET
Timestamp
Sep 20, 2026 11:44 AM
Duration
120.13 ms
Status
201
Response Size
20 KB
Error
No

Performance Breakdown

Database
18.4% (6 queries)
View Rendering
11.4%
Application Logic
70.2%
Other Operations
0.0%
Total Operations
14
Slowest Operation
120.13 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 171.1ms 342.3ms 513.4ms 684.5ms

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 users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 35 ms 29.1%
home#api_complex 120 ms 100.0%
users/index 11 ms 9.2%
home#api_complex 120 ms 100.0%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 14 ms 11.7%
SELECT * FROM posts WHERE created_at > ? 32 ms 26.6%
home#api_complex 120 ms 100.0%
users/index 5 ms 4.2%
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... 12 ms 10.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 5 ms 4.2%
home/index 38 ms 31.6%
SELECT * FROM users WHERE id = ? 28 ms 23.3%
home#api_complex 120 ms 100.0%
users/index 24 ms 20.0%