Request Details

Route
/sign_in GET|POST
Timestamp
Sep 22, 2026 11:37 PM
Duration
44.08 ms
Status
200
Response Size
6.3 KB
Error
No

Performance Breakdown

Database
23.6% (2 queries)
View Rendering
16.3%
Application Logic
60.0%
Other Operations
0.0%
Total Operations
7
Slowest Operation
44.08 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 55.1ms 110.1ms 165.2ms 220.2ms

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
posts/show 11 ms 25.0%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 20 ms 45.4%
home/index 25 ms 56.7%
sessions#new 44 ms 100.0%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 32 ms 72.6%
sessions#new 44 ms 100.0%
sessions#new 44 ms 100.0%