Request Details

Route
/sign_in GET|POST
Timestamp
Sep 17, 2026 11:35 PM
Duration
39.31 ms
Status
204
Response Size
3.1 KB
Error
No

Performance Breakdown

Database
20.3% (2 queries)
View Rendering
0.0%
Application Logic
79.7%
Other Operations
0.0%
Total Operations
4
Slowest Operation
39.31 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
Database
0.0ms 24.7ms 49.3ms 74.0ms 98.6ms

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 name FROM users 6 ms 15.3%
sessions#new 39 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... 14 ms 35.6%
sessions#new 39 ms 100.0%