Request Details

Route
/error_prone GET
Timestamp
Sep 09, 2026 7:09 PM
Duration
205.71 ms
Status
201
Response Size
4 KB
Error
No

Performance Breakdown

Database
3.4% (4 queries)
View Rendering
5.2%
Application Logic
91.4%
Other Operations
0.0%
Total Operations
19
Slowest Operation
205.71 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 506.6ms 1013.2ms 1519.8ms 2026.4ms

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
posts/show 9 ms 4.4%
layouts/application 28 ms 13.6%
SELECT * FROM posts WHERE created_at > ? 3 ms 1.5%
home#errors 206 ms 100.0%
home#errors 206 ms 100.0%
home#errors 206 ms 100.0%
home#errors 206 ms 100.0%
SELECT * FROM users WHERE id = ? 33 ms 16.0%
posts/show 16 ms 7.8%
home#errors 206 ms 100.0%
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... 18 ms 8.8%
home#errors 206 ms 100.0%
layouts/application 7 ms 3.4%
home#errors 206 ms 100.0%
home#errors 206 ms 100.0%
home#errors 206 ms 100.0%
home/index 19 ms 9.2%
layouts/application 27 ms 13.1%
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... 15 ms 7.3%