Request Details

Route
/error_prone GET
Timestamp
Sep 09, 2026 10:50 AM
Duration
55.46 ms
Status
204
Response Size
7.3 KB
Error
No

Performance Breakdown

Database
10.5% (4 queries)
View Rendering
26.1%
Application Logic
63.3%
Other Operations
0.0%
Total Operations
20
Slowest Operation
55.46 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 197.0ms 394.1ms 591.1ms 788.2ms

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
home#errors 55 ms 100.0%
home#errors 55 ms 100.0%
home#errors 55 ms 100.0%
home#errors 55 ms 100.0%
home#errors 55 ms 100.0%
posts/show 33 ms 59.5%
SELECT id, name, email FROM users WHERE id = ? 23 ms 41.5%
layouts/application 18 ms 32.5%
users/index 21 ms 37.9%
users/index 39 ms 70.3%
home#errors 55 ms 100.0%
home#errors 55 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... 29 ms 52.3%
home#errors 55 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... 20 ms 36.1%
posts/show 28 ms 50.5%
layouts/application 30 ms 54.1%
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... 11 ms 19.8%
layouts/application 37 ms 66.7%
home#errors 55 ms 100.0%