Request Details

Route
/api_complex GET
Timestamp
Sep 09, 2026 10:55 PM
Duration
203.8 ms
Status
201
Response Size
21 KB
Error
No

Performance Breakdown

Database
8.5% (9 queries)
View Rendering
9.1%
Application Logic
82.4%
Other Operations
0.0%
Total Operations
25
Slowest Operation
203.8 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 494.9ms 989.7ms 1484.6ms 1979.4ms

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
posts/show 7 ms 3.4%
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... 2 ms 1.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 14 ms 6.9%
home/index 32 ms 15.7%
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... 15 ms 7.4%
home#api_complex 204 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 25 ms 12.3%
home#api_complex 204 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... 6 ms 2.9%
users/index 32 ms 15.7%
home#api_complex 204 ms 100.0%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 35 ms 17.2%
layouts/application 21 ms 10.3%
layouts/application 33 ms 16.2%
home#api_complex 204 ms 100.0%
home#api_complex 204 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 20 ms 9.8%
home#api_complex 204 ms 100.0%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 28 ms 13.7%
users/index 30 ms 14.7%
home#api_complex 204 ms 100.0%
home/index 12 ms 5.9%
home/index 13 ms 6.4%
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... 24 ms 11.8%
home#api_complex 204 ms 100.0%