Request Details

Route
/posts POST
Timestamp
Sep 09, 2026 10:39 PM
Duration
37.52 ms
Status
200
Response Size
22 KB
Error
No

Performance Breakdown

Database
13.7% (1 query)
View Rendering
25.8%
Application Logic
60.5%
Other Operations
0.0%
Total Operations
4
Slowest Operation
37.52 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 31.0ms 62.0ms 93.0ms 124.0ms

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
posts#create 38 ms 100.0%
home/index 32 ms 85.3%
posts#create 38 ms 100.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 17 ms 45.3%