Request Details

Route
/fast GET
Timestamp
Sep 22, 2026 8:21 PM
Duration
10.0 ms
Status
201
Response Size
561 Bytes
Error
No

Performance Breakdown

Database
29.8% (1 query)
View Rendering
70.2%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
2
Slowest Operation
40.0 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 14.3ms 28.5ms 42.8ms 57.0ms

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
users/index 40 ms 400.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 17 ms 170.0%