Request Details

Route
/users/:id GET
Timestamp
Sep 09, 2026 9:15 PM
Duration
53.72 ms
Status
204
Response Size
17 KB
Error
No

Performance Breakdown

Database
18.2% (3 queries)
View Rendering
45.7%
Application Logic
36.1%
Other Operations
0.0%
Total Operations
6
Slowest Operation
53.72 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 37.2ms 74.4ms 111.5ms 148.7ms

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... 25 ms 46.5%
SELECT * FROM posts WHERE created_at > ? 1 ms 1.9%
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... 1 ms 1.9%
users#show 54 ms 100.0%
layouts/application 37 ms 68.9%
home/index 31 ms 57.7%