Request Details

Route
/comments POST
Timestamp
Sep 22, 2026 11:28 PM
Duration
89.53 ms
Status
201
Response Size
11 KB
Error
No

Performance Breakdown

Database
11.9% (2 queries)
View Rendering
2.9%
Application Logic
85.2%
Other Operations
0.0%
Total Operations
7
Slowest Operation
89.53 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 105.0ms 210.1ms 315.1ms 420.1ms

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 90 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 32 ms 35.7%
posts/show 12 ms 13.4%
comments#create 90 ms 100.0%
comments#create 90 ms 100.0%
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... 18 ms 20.1%
comments#create 90 ms 100.0%