Request Details

Route
/error_prone GET
Timestamp
Sep 12, 2026 5:57 AM
Duration
14.86 ms
Status
200
Response Size
7.9 KB
Error
No

Performance Breakdown

Database
33.0% (2 queries)
View Rendering
39.7%
Application Logic
27.3%
Other Operations
0.0%
Total Operations
8
Slowest Operation
34.0 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 40.9ms 81.8ms 122.7ms 163.6ms

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
users/index 30 ms 201.8%
home#errors 15 ms 100.0%
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... 20 ms 134.5%
home/index 6 ms 40.4%
layouts/application 29 ms 195.1%
home#errors 15 ms 100.0%
home#errors 15 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 34 ms 228.7%