Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 1:34 AM
Duration
54.62 ms
Status
201
Response Size
1.2 KB
Error
No

Performance Breakdown

Database
22.9% (5 queries)
View Rendering
59.9%
Application Logic
17.1%
Other Operations
0.0%
Total Operations
14
Slowest Operation
54.62 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 79.7ms 159.3ms 239.0ms 318.6ms

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 16.5%
home/index 36 ms 65.9%
home/index 39 ms 71.4%
home/index 24 ms 43.9%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 3 ms 5.5%
posts/show 15 ms 27.5%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 16 ms 29.3%
users/index 19 ms 34.8%
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... 9 ms 16.5%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 21 ms 38.5%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 24 ms 43.9%
home/index 24 ms 43.9%
home#errors 55 ms 100.0%
posts/show 25 ms 45.8%