Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 4:32 PM
Duration
92.15 ms
Status
204
Response Size
5.8 KB
Error
No

Performance Breakdown

Database
7.7% (3 queries)
View Rendering
12.4%
Application Logic
79.9%
Other Operations
0.0%
Total Operations
16
Slowest Operation
92.15 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 201.8ms 403.5ms 605.3ms 807.1ms

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.*, 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... 22 ms 23.9%
posts/show 15 ms 16.3%
home#errors 92 ms 100.0%
home#errors 92 ms 100.0%
posts/show 28 ms 30.4%
home#errors 92 ms 100.0%
posts/show 14 ms 15.2%
home#errors 92 ms 100.0%
home/index 6 ms 6.5%
home#errors 92 ms 100.0%
layouts/application 13 ms 14.1%
home#errors 92 ms 100.0%
posts/show 24 ms 26.0%
home#errors 92 ms 100.0%
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... 20 ms 21.7%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 20 ms 21.7%