Request Details

Route
/sign_in GET|POST
Timestamp
Sep 18, 2026 11:31 AM
Duration
52.43 ms
Status
200
Response Size
11 KB
Error
No

Performance Breakdown

Database
35.8% (3 queries)
View Rendering
11.9%
Application Logic
52.2%
Other Operations
0.0%
Total Operations
6
Slowest Operation
52.43 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 50.2ms 100.4ms 150.6ms 200.9ms

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 users WHERE id = ? 16 ms 30.5%
sessions#new 52 ms 100.0%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 35 ms 66.8%
sessions#new 52 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... 21 ms 40.1%
home/index 24 ms 45.8%