Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 1:57 AM
Duration
101.91 ms
Status
204
Response Size
7.1 KB
Error
No

Performance Breakdown

Database
9.9% (5 queries)
View Rendering
25.9%
Application Logic
64.1%
Other Operations
0.0%
Total Operations
17
Slowest Operation
101.91 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 198.6ms 397.3ms 595.9ms 794.6ms

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
home#errors 102 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... 16 ms 15.7%
posts/show 23 ms 22.6%
home/index 23 ms 22.6%
users/index 33 ms 32.4%
users/index 11 ms 10.8%
home#errors 102 ms 100.0%
SELECT name FROM users 13 ms 12.8%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 31 ms 30.4%
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... 11 ms 10.8%
layouts/application 39 ms 38.3%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 8 ms 7.8%
posts/show 37 ms 36.3%
layouts/application 40 ms 39.2%
home#errors 102 ms 100.0%
home#errors 102 ms 100.0%
home#errors 102 ms 100.0%