Request Details

Route
/ GET
Timestamp
Sep 13, 2026 10:58 AM
Duration
129.42 ms
Status
200
Response Size
17 KB
Error
No

Performance Breakdown

Database
9.1% (5 queries)
View Rendering
13.6%
Application Logic
77.3%
Other Operations
0.0%
Total Operations
14
Slowest Operation
129.42 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 167.4ms 334.8ms 502.3ms 669.7ms

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 (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 1.5%
SELECT name FROM users 25 ms 19.3%
home#index 129 ms 100.0%
posts/show 25 ms 19.3%
layouts/application 5 ms 3.9%
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... 21 ms 16.2%
SELECT * FROM posts WHERE created_at > ? 9 ms 7.0%
home/index 18 ms 13.9%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 4 ms 3.1%
home#index 129 ms 100.0%
home#index 129 ms 100.0%
posts/show 18 ms 13.9%
home/index 25 ms 19.3%
home#index 129 ms 100.0%