Request Details

Route
/error_prone GET
Timestamp
Sep 10, 2026 2:01 AM
Duration
63.83 ms
Status
201
Response Size
1.5 KB
Error
No

Performance Breakdown

Database
34.0% (4 queries)
View Rendering
17.8%
Application Logic
48.2%
Other Operations
0.0%
Total Operations
10
Slowest Operation
63.83 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 66.2ms 132.3ms 198.5ms 264.7ms

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 7 ms 11.0%
home#errors 64 ms 100.0%
users/index 7 ms 11.0%
SELECT name FROM users 33 ms 51.7%
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... 8 ms 12.5%
home#errors 64 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 35 ms 54.8%
layouts/application 25 ms 39.2%
users/index 8 ms 12.5%
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... 14 ms 21.9%