Request Details

Route
/slow GET
Timestamp
Sep 22, 2026 10:26 AM
Duration
345.17 ms
Status
204
Response Size
150 KB
Error
No

Performance Breakdown

Database
6.3% (6 queries)
View Rendering
4.3%
Application Logic
89.4%
Other Operations
0.0%
Total Operations
15
Slowest Operation
345.17 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 482.7ms 965.4ms 1448.1ms 1930.8ms

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 345 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 19 ms 5.5%
users/index 19 ms 5.5%
users/index 14 ms 4.1%
home#slow 345 ms 100.0%
home#slow 345 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 34 ms 9.9%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 28 ms 8.1%
home#slow 345 ms 100.0%
users/index 20 ms 5.8%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 1 ms 0.3%
home#slow 345 ms 100.0%
home/index 30 ms 8.7%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 28 ms 8.1%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 12 ms 3.5%