Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 10:28 PM
Duration
111.11 ms
Status
200
Response Size
52 KB
Error
No

Performance Breakdown

Database
12.3% (7 queries)
View Rendering
8.8%
Application Logic
78.9%
Other Operations
0.0%
Total Operations
20
Slowest Operation
111.11 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 281.5ms 562.9ms 844.4ms 1125.9ms

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 * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 3 ms 2.7%
SELECT name FROM users 35 ms 31.5%
SELECT name FROM users 21 ms 18.9%
home#api_complex 111 ms 100.0%
users/index 8 ms 7.2%
home#api_complex 111 ms 100.0%
home#api_complex 111 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 32 ms 28.8%
layouts/application 17 ms 15.3%
home/index 27 ms 24.3%
users/index 36 ms 32.4%
posts/show 11 ms 9.9%
home#api_complex 111 ms 100.0%
home#api_complex 111 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... 33 ms 29.7%
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... 6 ms 5.4%
home#api_complex 111 ms 100.0%
home#api_complex 111 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 8 ms 7.2%
home#api_complex 111 ms 100.0%