Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 7:30 PM
Duration
70.53 ms
Status
200
Response Size
5.4 KB
Error
No

Performance Breakdown

Database
27.4% (3 queries)
View Rendering
13.1%
Application Logic
59.5%
Other Operations
0.0%
Total Operations
8
Slowest Operation
70.53 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 59.3ms 118.5ms 177.8ms 237.1ms

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
home#errors 71 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... 12 ms 17.0%
posts/show 12 ms 17.0%
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... 23 ms 32.6%
home#errors 71 ms 100.0%
SELECT * FROM users WHERE id = ? 30 ms 42.5%
posts/show 6 ms 8.5%
home/index 13 ms 18.4%