Request Details

Route
/api_complex GET
Timestamp
Sep 15, 2026 3:12 PM
Duration
83.43 ms
Status
200
Response Size
60 KB
Error
No

Performance Breakdown

Database
11.9% (6 queries)
View Rendering
8.6%
Application Logic
79.6%
Other Operations
0.0%
Total Operations
18
Slowest Operation
83.43 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 236.0ms 471.9ms 707.9ms 943.9ms

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... 22 ms 26.4%
SELECT * FROM users WHERE id = ? 1 ms 1.2%
home#api_complex 83 ms 100.0%
home#api_complex 83 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... 20 ms 24.0%
home#api_complex 83 ms 100.0%
home#api_complex 83 ms 100.0%
posts/show 33 ms 39.6%
home#api_complex 83 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... 24 ms 28.8%
home#api_complex 83 ms 100.0%
SELECT name FROM users 16 ms 19.2%
home#api_complex 83 ms 100.0%
home/index 12 ms 14.4%
home#api_complex 83 ms 100.0%
home#api_complex 83 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 29 ms 34.8%
home/index 36 ms 43.1%