Request Details

Route
/error_prone GET
Timestamp
Sep 09, 2026 7:59 PM
Duration
85.5 ms
Status
200
Response Size
6.7 KB
Error
No

Performance Breakdown

Database
23.7% (7 queries)
View Rendering
21.1%
Application Logic
55.1%
Other Operations
0.0%
Total Operations
20
Slowest Operation
85.5 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 193.9ms 387.7ms 581.6ms 775.5ms

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/index 10 ms 11.7%
posts/show 24 ms 28.1%
SELECT * FROM users WHERE id = ? 35 ms 40.9%
home#errors 85 ms 100.0%
home#errors 85 ms 100.0%
users/index 16 ms 18.7%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 13 ms 15.2%
layouts/application 6 ms 7.0%
home/index 32 ms 37.4%
home#errors 85 ms 100.0%
home/index 28 ms 32.7%
users/index 21 ms 24.6%
home/index 27 ms 31.6%
home#errors 85 ms 100.0%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 27 ms 31.6%
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... 33 ms 38.6%
SELECT name FROM users 28 ms 32.7%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 35 ms 40.9%
home#errors 85 ms 100.0%
SELECT name FROM users 13 ms 15.2%