Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 10:39 AM
Duration
28.49 ms
Status
200
Response Size
3.7 KB
Error
No

Performance Breakdown

Database
48.2% (8 queries)
View Rendering
6.0%
Application Logic
45.8%
Other Operations
0.0%
Total Operations
14
Slowest Operation
30.0 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 62.2ms 124.5ms 186.7ms 248.9ms

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 28 ms 100.0%
DELETE FROM comments WHERE created_at < ? 8 ms 28.1%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 11 ms 38.6%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 4 ms 14.0%
home#errors 28 ms 100.0%
SELECT id, name FROM users WHERE email = ? 20 ms 70.2%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 14 ms 49.1%
home#errors 28 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 23 ms 80.7%
home#errors 28 ms 100.0%
home/index 8 ms 28.1%
SELECT * FROM users WHERE id = ? 30 ms 105.3%
SELECT * FROM users WHERE id = ? 10 ms 35.1%
layouts/application 7 ms 24.6%