Request Details

Route
/error_prone GET
Timestamp
Sep 10, 2026 10:09 PM
Duration
128.86 ms
Status
200
Response Size
4.5 KB
Error
No

Performance Breakdown

Database
5.8% (1 query)
View Rendering
15.6%
Application Logic
78.6%
Other Operations
0.0%
Total Operations
6
Slowest Operation
128.86 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 81.9ms 163.9ms 245.8ms 327.7ms

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 129 ms 100.0%
home#errors 129 ms 100.0%
users/index 27 ms 21.0%
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... 19 ms 14.7%
home/index 5 ms 3.9%
home/index 19 ms 14.7%