Request Details

Route
/users POST
Timestamp
Sep 10, 2026 4:57 PM
Duration
169.15 ms
Status
201
Response Size
16 KB
Error
No

Performance Breakdown

Database
8.4% (2 queries)
View Rendering
11.1%
Application Logic
80.5%
Other Operations
0.0%
Total Operations
7
Slowest Operation
169.15 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 157.6ms 315.2ms 472.8ms 630.4ms

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/show 38 ms 22.5%
users#create 169 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... 19 ms 11.2%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 34 ms 20.1%
home/index 32 ms 18.9%
users#create 169 ms 100.0%
users#create 169 ms 100.0%