Request Details

Route
/api_complex GET
Timestamp
Sep 14, 2026 12:10 AM
Duration
216.84 ms
Status
204
Response Size
35 KB
Error
No

Performance Breakdown

Database
12.6% (7 queries)
View Rendering
7.4%
Application Logic
80.1%
Other Operations
0.0%
Total Operations
15
Slowest Operation
216.84 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 338.6ms 677.1ms 1015.7ms 1354.2ms

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#api_complex 217 ms 100.0%
home#api_complex 217 ms 100.0%
home#api_complex 217 ms 100.0%
home/index 39 ms 18.0%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 19 ms 8.8%
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... 26 ms 12.0%
home#api_complex 217 ms 100.0%
home/index 34 ms 15.7%
home#api_complex 217 ms 100.0%
SELECT COUNT(*) FROM comments WHERE post_id = ? 32 ms 14.8%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 2 ms 0.9%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 30 ms 13.8%
posts/show 27 ms 12.5%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 29 ms 13.4%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 32 ms 14.8%