Request Details

Route
/comments POST
Timestamp
Sep 09, 2026 9:56 PM
Duration
94.23 ms
Status
200
Response Size
16 KB
Error
No

Performance Breakdown

Database
8.5% (2 queries)
View Rendering
5.8%
Application Logic
85.7%
Other Operations
0.0%
Total Operations
7
Slowest Operation
94.23 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 82.4ms 164.8ms 247.3ms 329.7ms

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 * FROM users WHERE id = ? 2 ms 2.1%
comments#create 94 ms 100.0%
comments#create 94 ms 100.0%
layouts/application 9 ms 9.6%
posts/show 10 ms 10.6%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 26 ms 27.6%
comments#create 94 ms 100.0%