Request Details

Route
/error_prone GET
Timestamp
Sep 11, 2026 11:26 PM
Duration
21.8 ms
Status
204
Response Size
6.3 KB
Error
No

Performance Breakdown

Database
17.3% (2 queries)
View Rendering
49.8%
Application Logic
32.9%
Other Operations
0.0%
Total Operations
8
Slowest Operation
29.0 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 33.1ms 66.3ms 99.4ms 132.6ms

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
layouts/application 29 ms 133.0%
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... 7 ms 32.1%
home#errors 22 ms 100.0%
home/index 11 ms 50.5%
posts/show 21 ms 96.3%
home/index 5 ms 22.9%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 16 ms 73.4%
home#errors 22 ms 100.0%