Request Details

Route
/comments POST
Timestamp
Sep 23, 2026 12:04 AM
Duration
90.61 ms
Status
204
Response Size
7.4 KB
Error
No

Performance Breakdown

Database
9.4% (2 queries)
View Rendering
3.6%
Application Logic
86.9%
Other Operations
0.0%
Total Operations
8
Slowest Operation
90.61 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 130.3ms 260.5ms 390.8ms 521.0ms

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
comments#create 91 ms 100.0%
users/index 19 ms 21.0%
comments#create 91 ms 100.0%
SELECT id, name FROM users WHERE email = ? 32 ms 35.3%
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 18.8%
comments#create 91 ms 100.0%
comments#create 91 ms 100.0%
comments#create 91 ms 100.0%