Request Details

Route
/error_prone GET
Timestamp
Sep 23, 2026 2:32 AM
Duration
105.91 ms
Status
200
Response Size
4 KB
Error
No

Performance Breakdown

Database
4.9% (4 queries)
View Rendering
9.2%
Application Logic
85.9%
Other Operations
0.0%
Total Operations
19
Slowest Operation
105.91 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 277.3ms 554.6ms 831.9ms 1109.2ms

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
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... 35 ms 33.0%
home#errors 106 ms 100.0%
home/index 20 ms 18.9%
home/index 27 ms 25.5%
home#errors 106 ms 100.0%
users/index 12 ms 11.3%
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... 12 ms 11.3%
home#errors 106 ms 100.0%
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... 6 ms 5.7%
home#errors 106 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... 1 ms 0.9%
home#errors 106 ms 100.0%
home#errors 106 ms 100.0%
home/index 24 ms 22.7%
home#errors 106 ms 100.0%
home#errors 106 ms 100.0%
home/index 7 ms 6.6%
users/index 12 ms 11.3%
home#errors 106 ms 100.0%