Request Details

Route
/fast GET
Timestamp
Sep 22, 2026 11:42 PM
Duration
12.43 ms
Status
200
Response Size
1.4 KB
Error
No

Performance Breakdown

Database
2.0% (1 query)
View Rendering
98.0%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
3
Slowest Operation
37.0 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 12.5ms 25.0ms 37.5ms 50.0ms

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 12 ms 96.5%
home/index 37 ms 297.6%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 1 ms 8.0%