Request Details

Route
/error_prone GET
Timestamp
Sep 14, 2026 12:01 PM
Duration
45.52 ms
Status
400
Response Size
2.6 KB
Error
No

Performance Breakdown

Database
3.9% (2 queries)
View Rendering
10.8%
Application Logic
85.4%
Other Operations
0.0%
Total Operations
20
Slowest Operation
45.52 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 199.9ms 399.9ms 599.8ms 799.8ms

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
layouts/application 34 ms 74.7%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
users/index 23 ms 50.5%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 25 ms 54.9%
SELECT name FROM users 6 ms 13.2%
posts/show 29 ms 63.7%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%