Request Details

Route
/api_simple GET
Timestamp
Sep 11, 2026 2:09 AM
Duration
17.57 ms
Status
204
Response Size
1.9 KB
Error
No

Performance Breakdown

Database
33.5% (2 queries)
View Rendering
10.4%
Application Logic
56.1%
Other Operations
0.0%
Total Operations
7
Slowest Operation
35.0 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 31.3ms 62.6ms 93.9ms 125.3ms

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
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 35 ms 199.3%
home#api_simple 18 ms 100.0%
home#api_simple 18 ms 100.0%
SELECT COUNT(*) FROM comments WHERE post_id = ? 7 ms 39.9%
home#api_simple 18 ms 100.0%
home/index 13 ms 74.0%
home#api_simple 18 ms 100.0%