Request Details

Route
/users/:id PUT
Timestamp
Sep 14, 2026 9:03 AM
Duration
38.2 ms
Status
201
Response Size
10 KB
Error
No

Performance Breakdown

Database
28.2% (3 queries)
View Rendering
25.8%
Application Logic
45.9%
Other Operations
0.0%
Total Operations
7
Slowest Operation
38.2 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 41.6ms 83.2ms 124.8ms 166.4ms

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
layouts/application 33 ms 86.4%
SELECT * FROM posts WHERE created_at > ? 12 ms 31.4%
home/index 10 ms 26.2%
users#update 38 ms 100.0%
users#update 38 ms 100.0%
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... 4 ms 10.5%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 31 ms 81.2%