Request Details

Route
/comments POST
Timestamp
Sep 16, 2026 6:01 PM
Duration
39.92 ms
Status
204
Response Size
5.8 KB
Error
No

Performance Breakdown

Database
12.9% (2 queries)
View Rendering
18.5%
Application Logic
68.6%
Other Operations
0.0%
Total Operations
8
Slowest Operation
39.92 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 58.2ms 116.3ms 174.5ms 232.7ms

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
posts/show 19 ms 47.6%
comments#create 40 ms 100.0%
users/index 24 ms 60.1%
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... 15 ms 37.6%
comments#create 40 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 15 ms 37.6%
comments#create 40 ms 100.0%
comments#create 40 ms 100.0%