Request Details

Route
/error_prone GET
Timestamp
Sep 11, 2026 2:25 AM
Duration
61.93 ms
Status
200
Response Size
5.3 KB
Error
No

Performance Breakdown

Database
22.0% (5 queries)
View Rendering
27.0%
Application Logic
51.0%
Other Operations
0.0%
Total Operations
14
Slowest Operation
61.93 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 121.4ms 242.9ms 364.3ms 485.7ms

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 62 ms 100.0%
users/index 35 ms 56.5%
home#errors 62 ms 100.0%
home/index 16 ms 25.8%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 30 ms 48.4%
home/index 13 ms 21.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 22 ms 35.5%
home#errors 62 ms 100.0%
home/index 39 ms 63.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 6 ms 9.7%
SELECT * FROM posts WHERE created_at > ? 21 ms 33.9%
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 45.2%
users/index 28 ms 45.2%
home#errors 62 ms 100.0%