Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 3:58 PM
Duration
73.19 ms
Status
204
Response Size
5.6 KB
Error
No

Performance Breakdown

Database
8.1% (2 queries)
View Rendering
32.8%
Application Logic
59.1%
Other Operations
0.0%
Total Operations
9
Slowest Operation
73.19 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 92.9ms 185.8ms 278.7ms 371.6ms

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
home#errors 73 ms 100.0%
users/index 15 ms 20.5%
home/index 39 ms 53.3%
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... 19 ms 26.0%
home#errors 73 ms 100.0%
users/index 36 ms 49.2%
SELECT name FROM users 11 ms 15.0%
layouts/application 32 ms 43.7%
home#errors 73 ms 100.0%