Request Details

Route
/ GET
Timestamp
Sep 18, 2026 4:21 PM
Duration
117.85 ms
Status
200
Response Size
19 KB
Error
No

Performance Breakdown

Database
28.8% (8 queries)
View Rendering
12.0%
Application Logic
59.2%
Other Operations
0.0%
Total Operations
14
Slowest Operation
117.85 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 149.4ms 298.8ms 448.2ms 597.6ms

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 21 ms 17.8%
SELECT * FROM posts WHERE created_at > ? 19 ms 16.1%
home#index 118 ms 100.0%
SELECT name FROM users 21 ms 17.8%
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... 30 ms 25.5%
SELECT * FROM users WHERE id = ? 26 ms 22.1%
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... 28 ms 23.8%
SELECT name FROM users 34 ms 28.8%
home/index 25 ms 21.2%
home/index 26 ms 22.1%
home#index 118 ms 100.0%
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... 13 ms 11.0%
home#index 118 ms 100.0%
SELECT * FROM users WHERE id = ? 1 ms 0.8%