Request Details

Route
/error_prone GET
Timestamp
Sep 23, 2026 12:51 AM
Duration
69.65 ms
Status
204
Response Size
1.8 KB
Error
No

Performance Breakdown

Database
15.5% (4 queries)
View Rendering
30.3%
Application Logic
54.1%
Other Operations
0.0%
Total Operations
14
Slowest Operation
69.65 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 128.6ms 257.3ms 385.9ms 514.6ms

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
SELECT name FROM users 9 ms 12.9%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 10 ms 14.4%
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... 28 ms 40.2%
home#errors 70 ms 100.0%
home/index 36 ms 51.7%
home#errors 70 ms 100.0%
home#errors 70 ms 100.0%
users/index 11 ms 15.8%
posts/show 31 ms 44.5%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 33 ms 47.4%
home#errors 70 ms 100.0%
layouts/application 33 ms 47.4%
posts/show 25 ms 35.9%
posts/show 20 ms 28.7%