Request Details

Route
/fast GET
Timestamp
Sep 22, 2026 4:43 PM
Duration
17.09 ms
Status
204
Response Size
1.3 KB
Error
No

Performance Breakdown

Database
58.1% (1 query)
View Rendering
41.9%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
2
Slowest Operation
25.0 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
View
Database
0.0ms 10.8ms 21.5ms 32.3ms 43.0ms

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
posts/show 18 ms 105.3%
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 > ? 25 ms 146.2%