Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 4:15 PM
Duration
181.14 ms
Status
204
Response Size
11 KB
Error
No

Performance Breakdown

Database
5.6% (5 queries)
View Rendering
8.3%
Application Logic
86.0%
Other Operations
0.0%
Total Operations
19
Slowest Operation
181.14 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 473.8ms 947.6ms 1421.4ms 1895.2ms

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/index 37 ms 20.4%
home#api_complex 181 ms 100.0%
layouts/application 31 ms 17.1%
home#api_complex 181 ms 100.0%
home#api_complex 181 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 16 ms 8.8%
home#api_complex 181 ms 100.0%
home#api_complex 181 ms 100.0%
DELETE FROM comments WHERE created_at < ? 7 ms 3.9%
home#api_complex 181 ms 100.0%
posts/show 27 ms 14.9%
SELECT * FROM posts WHERE created_at > ? 31 ms 17.1%
SELECT * FROM users WHERE id = ? 35 ms 19.3%
home/index 23 ms 12.7%
users/index 40 ms 22.1%
home#api_complex 181 ms 100.0%
home#api_complex 181 ms 100.0%
home#api_complex 181 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... 18 ms 9.9%