Request Details

Route
/users/:id/settings GET|PATCH
Timestamp
Sep 12, 2026 3:35 PM
Duration
27.68 ms
Status
201
Response Size
17 KB
Error
No

Performance Breakdown

Database
15.9% (2 queries)
View Rendering
26.9%
Application Logic
57.3%
Other Operations
0.0%
Total Operations
7
Slowest Operation
27.68 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 36.3ms 72.5ms 108.8ms 145.0ms

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 posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 20 ms 72.3%
users/settings#show 28 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... 3 ms 10.8%
users/settings#show 28 ms 100.0%
posts/show 13 ms 47.0%
home/index 26 ms 93.9%
users/settings#show 28 ms 100.0%