Request Details

Route
/error_prone GET
Timestamp
Sep 13, 2026 6:04 PM
Duration
23.74 ms
Status
200
Response Size
5.1 KB
Error
No

Performance Breakdown

Database
22.8% (3 queries)
View Rendering
28.0%
Application Logic
49.2%
Other Operations
0.0%
Total Operations
10
Slowest Operation
37.0 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 48.2ms 96.5ms 144.7ms 193.0ms

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 24 ms 100.0%
posts/show 7 ms 29.5%
posts/show 10 ms 42.1%
posts/show 37 ms 155.9%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 20 ms 84.3%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 21 ms 88.5%
home#errors 24 ms 100.0%
home#errors 24 ms 100.0%
home#errors 24 ms 100.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 3 ms 12.6%