Request Details

Route
/error_prone GET
Timestamp
Sep 10, 2026 8:42 AM
Duration
54.1 ms
Status
204
Response Size
4.4 KB
Error
No

Performance Breakdown

Database
23.8% (3 queries)
View Rendering
11.9%
Application Logic
64.3%
Other Operations
0.0%
Total Operations
6
Slowest Operation
54.1 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 42.1ms 84.1ms 126.2ms 168.2ms

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 users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 31 ms 57.3%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 1 ms 1.8%
home/index 20 ms 37.0%
home#errors 54 ms 100.0%
home#errors 54 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 8 ms 14.8%