Request Details

Route
/comments POST
Timestamp
Sep 12, 2026 5:59 AM
Duration
38.8 ms
Status
200
Response Size
16 KB
Error
No

Performance Breakdown

Database
23.5% (2 queries)
View Rendering
50.4%
Application Logic
26.1%
Other Operations
0.0%
Total Operations
6
Slowest Operation
38.8 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 37.2ms 74.4ms 111.6ms 148.8ms

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
DELETE FROM comments WHERE created_at < ? 7 ms 18.0%
users/index 17 ms 43.8%
layouts/application 35 ms 90.2%
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 > ? 28 ms 72.2%
home/index 23 ms 59.3%
comments#create 39 ms 100.0%