Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 7:28 PM
Duration
99.98 ms
Status
200
Response Size
7.4 KB
Error
No

Performance Breakdown

Database
32.5% (5 queries)
View Rendering
13.7%
Application Logic
53.8%
Other Operations
0.0%
Total Operations
10
Slowest Operation
99.98 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 93.0ms 186.0ms 279.0ms 372.0ms

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
layouts/application 9 ms 9.0%
SELECT name FROM users 31 ms 31.0%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 10 ms 10.0%
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... 27 ms 27.0%
DELETE FROM posts WHERE id = ? 22 ms 22.0%
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... 31 ms 31.0%
posts/show 14 ms 14.0%
home#errors 100 ms 100.0%
posts/show 28 ms 28.0%
home#errors 100 ms 100.0%