Request Details

Route
/sign_in GET|POST
Timestamp
Sep 19, 2026 4:25 PM
Duration
48.95 ms
Status
204
Response Size
7.6 KB
Error
No

Performance Breakdown

Database
12.4% (3 queries)
View Rendering
41.0%
Application Logic
46.6%
Other Operations
0.0%
Total Operations
8
Slowest Operation
48.95 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 52.5ms 104.9ms 157.4ms 209.9ms

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
SELECT name FROM users 4 ms 8.2%
posts/show 32 ms 65.4%
users/index 40 ms 81.7%
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... 4 ms 8.2%
users/index 14 ms 28.6%
sessions#new 49 ms 100.0%
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... 18 ms 36.8%
sessions#new 49 ms 100.0%