Request Details

Route
/comments POST
Timestamp
Sep 19, 2026 12:14 PM
Duration
16.85 ms
Status
204
Response Size
3.8 KB
Error
No

Performance Breakdown

Database
51.3% (3 queries)
View Rendering
10.6%
Application Logic
38.1%
Other Operations
0.0%
Total Operations
7
Slowest Operation
30.0 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 33.1ms 66.3ms 99.4ms 132.5ms

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
DELETE FROM comments WHERE created_at < ? 30 ms 178.1%
home/index 14 ms 83.1%
comments#create 17 ms 100.0%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 14 ms 83.1%
SELECT * FROM posts WHERE created_at > ? 24 ms 142.5%
comments#create 17 ms 100.0%
comments#create 17 ms 100.0%