Request Details

Route
/comments POST
Timestamp
Sep 22, 2026 10:25 PM
Duration
20.52 ms
Status
200
Response Size
12 KB
Error
No

Performance Breakdown

Database
4.4% (2 queries)
View Rendering
50.5%
Application Logic
45.1%
Other Operations
0.0%
Total Operations
8
Slowest Operation
36.0 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 34.1ms 68.3ms 102.4ms 136.6ms

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 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... 1 ms 4.9%
comments#create 21 ms 100.0%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 5 ms 24.4%
comments#create 21 ms 100.0%
users/index 15 ms 73.1%
users/index 36 ms 175.4%
comments#create 21 ms 100.0%
layouts/application 18 ms 87.7%