Request Details

Route
/api_simple GET
Timestamp
Sep 22, 2026 1:56 AM
Duration
16.5 ms
Status
200
Response Size
226 Bytes
Error
No

Performance Breakdown

Database
54.1% (4 queries)
View Rendering
34.2%
Application Logic
11.7%
Other Operations
0.0%
Total Operations
7
Slowest Operation
33.0 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
Action
View
Database
0.0ms 35.1ms 70.3ms 105.4ms 140.5ms

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 * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 24 ms 145.4%
SELECT name FROM users 17 ms 103.0%
SELECT COUNT(*) FROM comments WHERE post_id = ? 2 ms 12.1%
users/index 21 ms 127.2%
users/index 27 ms 163.6%
home#api_simple 17 ms 100.0%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 33 ms 199.9%