Request Details

Route
/comments POST
Timestamp
Sep 11, 2026 4:31 AM
Duration
26.52 ms
Status
200
Response Size
19 KB
Error
No

Performance Breakdown

Database
30.6% (3 queries)
View Rendering
46.3%
Application Logic
23.2%
Other Operations
0.0%
Total Operations
7
Slowest Operation
34.0 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 28.6ms 57.3ms 85.9ms 114.5ms

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 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 > ? 17 ms 64.1%
comments#create 27 ms 100.0%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 17 ms 64.1%
home/index 5 ms 18.9%
posts/show 14 ms 52.8%
posts/show 34 ms 128.2%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 1 ms 3.8%