Request Details

Route
/sign_in GET|POST
Timestamp
Sep 09, 2026 5:16 PM
Duration
38.23 ms
Status
204
Response Size
7.6 KB
Error
No

Performance Breakdown

Database
16.5% (2 queries)
View Rendering
4.6%
Application Logic
78.9%
Other Operations
0.0%
Total Operations
7
Slowest Operation
38.23 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 48.5ms 97.0ms 145.4ms 193.9ms

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
sessions#new 38 ms 100.0%
sessions#new 38 ms 100.0%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 8 ms 20.9%
sessions#new 38 ms 100.0%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 24 ms 62.8%
sessions#new 38 ms 100.0%
layouts/application 9 ms 23.5%