Request Details

Route
/error_prone GET
Timestamp
Sep 23, 2026 1:33 AM
Duration
39.46 ms
Status
200
Response Size
1.2 KB
Error
No

Performance Breakdown

Database
11.8% (1 query)
View Rendering
20.0%
Application Logic
68.2%
Other Operations
0.0%
Total Operations
8
Slowest Operation
39.46 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 72.3ms 144.6ms 217.0ms 289.3ms

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/index 22 ms 55.8%
home#errors 39 ms 100.0%
home#errors 39 ms 100.0%
home#errors 39 ms 100.0%
home#errors 39 ms 100.0%
home#errors 39 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 > ? 34 ms 86.2%
layouts/application 36 ms 91.2%