Request Details

Route
/fast GET
Timestamp
Sep 17, 2026 9:02 PM
Duration
19.69 ms
Status
500
Response Size
809 Bytes
Error
Yes

Performance Breakdown

Database
100.0% (1 query)
View Rendering
0.0%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
1
Slowest Operation
3.0 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
Database
0.0ms 0.8ms 1.5ms 2.3ms 3.0ms

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 posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 3 ms 15.2%