Request Details

Route
/health GET
Timestamp
Sep 09, 2026 11:54 AM
Duration
10.0 ms
Status
400
Response Size
2.2 KB
Error
No

Performance Breakdown

Database
47.3% (5 queries)
View Rendering
41.8%
Application Logic
11.0%
Other Operations
0.0%
Total Operations
8
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 22.8ms 45.5ms 68.3ms 91.0ms

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.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 17 ms 170.0%
layouts/application 8 ms 80.0%
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... 5 ms 50.0%
health#index 10 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 8 ms 80.0%
posts/show 30 ms 300.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 12 ms 120.0%
SELECT * FROM users WHERE id = ? 1 ms 10.0%