Request Details

Route
/sign_in GET|POST
Timestamp
Sep 10, 2026 5:45 AM
Duration
241.0 ms
Status
201
Response Size
12 KB
Error
No

Performance Breakdown

Database
0.2% (1 query)
View Rendering
10.4%
Application Logic
89.4%
Other Operations
0.0%
Total Operations
7
Slowest Operation
241.0 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 202.3ms 404.5ms 606.8ms 809.0ms

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
sessions#new 241 ms 100.0%
sessions#new 241 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... 2 ms 0.8%
sessions#new 241 ms 100.0%
users/index 31 ms 12.9%
users/index 20 ms 8.3%
posts/show 33 ms 13.7%