Request Details

Route
/slow GET
Timestamp
Sep 23, 2026 1:58 AM
Duration
264.91 ms
Status
201
Response Size
73 KB
Error
No

Performance Breakdown

Database
4.0% (5 queries)
View Rendering
4.3%
Application Logic
91.7%
Other Operations
0.0%
Total Operations
17
Slowest Operation
264.91 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 577.8ms 1155.7ms 1733.5ms 2311.3ms

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
home#slow 265 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 7 ms 2.6%
users/index 12 ms 4.5%
layouts/application 40 ms 15.1%
posts/show 33 ms 12.5%
home#slow 265 ms 100.0%
home#slow 265 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 13 ms 4.9%
home#slow 265 ms 100.0%
SELECT * FROM users WHERE id = ? 34 ms 12.8%
home#slow 265 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 33 ms 12.5%
home#slow 265 ms 100.0%
home#slow 265 ms 100.0%
home#slow 265 ms 100.0%
users/index 15 ms 5.7%
SELECT name FROM users 5 ms 1.9%