Request Details

Route
/ GET
Timestamp
Sep 21, 2026 12:53 AM
Duration
85.69 ms
Status
201
Response Size
12 KB
Error
No

Performance Breakdown

Database
16.3% (5 queries)
View Rendering
28.0%
Application Logic
55.8%
Other Operations
0.0%
Total Operations
11
Slowest Operation
85.69 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 76.8ms 153.7ms 230.5ms 307.4ms

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
SELECT * FROM users WHERE id = ? 4 ms 4.7%
posts/show 29 ms 33.8%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 6 ms 7.0%
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... 19 ms 22.2%
home#index 86 ms 100.0%
home#index 86 ms 100.0%
SELECT * FROM users WHERE id = ? 12 ms 14.0%
users/index 19 ms 22.2%
users/index 29 ms 33.8%
layouts/application 9 ms 10.5%
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... 9 ms 10.5%