Request Details

Route
/api_complex GET
Timestamp
Sep 12, 2026 5:55 AM
Duration
232.71 ms
Status
201
Response Size
79 KB
Error
No

Performance Breakdown

Database
8.1% (6 queries)
View Rendering
6.9%
Application Logic
85.0%
Other Operations
0.0%
Total Operations
17
Slowest Operation
232.71 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 410.6ms 821.1ms 1231.7ms 1642.3ms

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... 6 ms 2.6%
home/index 24 ms 10.3%
home/index 33 ms 14.2%
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 9.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 23 ms 9.9%
users/index 6 ms 2.6%
posts/show 30 ms 12.9%
home#api_complex 233 ms 100.0%
home#api_complex 233 ms 100.0%
home#api_complex 233 ms 100.0%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 35 ms 15.0%
home#api_complex 233 ms 100.0%
home#api_complex 233 ms 100.0%
home/index 20 ms 8.6%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 25 ms 10.7%
home#api_complex 233 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 23 ms 9.9%