Request Details

Route
/sign_in GET|POST
Timestamp
Sep 22, 2026 9:31 PM
Duration
49.78 ms
Status
204
Response Size
7.9 KB
Error
No

Performance Breakdown

Database
62.8% (4 queries)
View Rendering
0.0%
Application Logic
37.2%
Other Operations
0.0%
Total Operations
5
Slowest Operation
49.78 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 33.4ms 66.9ms 100.3ms 133.8ms

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 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... 20 ms 40.2%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 9 ms 18.1%
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 > ? 21 ms 42.2%
sessions#new 50 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 34 ms 68.3%