Request Details

Route
/api_complex GET
Timestamp
Sep 17, 2026 6:50 AM
Duration
279.28 ms
Status
200
Response Size
41 KB
Error
No

Performance Breakdown

Database
6.7% (6 queries)
View Rendering
10.0%
Application Logic
83.3%
Other Operations
0.0%
Total Operations
21
Slowest Operation
279.28 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 502.7ms 1005.3ms 1508.0ms 2010.7ms

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 posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 19 ms 6.8%
home#api_complex 279 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 30 ms 10.7%
home#api_complex 279 ms 100.0%
users/index 10 ms 3.6%
SELECT * FROM posts WHERE created_at > ? 30 ms 10.7%
layouts/application 35 ms 12.5%
layouts/application 33 ms 11.8%
users/index 8 ms 2.9%
home/index 36 ms 12.9%
home/index 26 ms 9.3%
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... 31 ms 11.1%
home#api_complex 279 ms 100.0%
home#api_complex 279 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 19 ms 6.8%
home/index 27 ms 9.7%
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... 5 ms 1.8%
posts/show 17 ms 6.1%
posts/show 9 ms 3.2%
home#api_complex 279 ms 100.0%
home#api_complex 279 ms 100.0%