Request Details

Route
/ GET
Timestamp
Sep 22, 2026 11:39 AM
Duration
90.64 ms
Status
201
Response Size
22 KB
Error
No

Performance Breakdown

Database
10.3% (4 queries)
View Rendering
26.8%
Application Logic
63.0%
Other Operations
0.0%
Total Operations
14
Slowest Operation
90.64 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 143.9ms 287.8ms 431.7ms 575.5ms

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... 21 ms 23.2%
home#index 91 ms 100.0%
home/index 37 ms 40.8%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 8 ms 8.8%
home#index 91 ms 100.0%
layouts/application 24 ms 26.5%
users/index 18 ms 19.9%
home/index 35 ms 38.6%
home/index 18 ms 19.9%
home#index 91 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 4 ms 4.4%
home#index 91 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... 26 ms 28.7%
home/index 22 ms 24.3%