Request Details

Route
/users/:id/settings GET|PATCH
Timestamp
Sep 10, 2026 10:28 AM
Duration
40.6 ms
Status
201
Response Size
5.1 KB
Error
No

Performance Breakdown

Database
32.9% (3 queries)
View Rendering
19.4%
Application Logic
47.7%
Other Operations
0.0%
Total Operations
6
Slowest Operation
40.6 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 42.6ms 85.1ms 127.7ms 170.2ms

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
users/settings#show 41 ms 100.0%
SELECT name FROM users 30 ms 73.9%
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... 1 ms 2.5%
users/settings#show 41 ms 100.0%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 25 ms 61.6%
layouts/application 33 ms 81.3%