Request Details

Route
/comments POST
Timestamp
Sep 23, 2026 12:28 AM
Duration
37.77 ms
Status
201
Response Size
16 KB
Error
No

Performance Breakdown

Database
41.2% (3 queries)
View Rendering
16.7%
Application Logic
42.1%
Other Operations
0.0%
Total Operations
6
Slowest Operation
37.77 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 44.9ms 89.8ms 134.7ms 179.5ms

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
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... 19 ms 50.3%
comments#create 38 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 28 ms 74.1%
DELETE FROM comments WHERE created_at < ? 27 ms 71.5%
home/index 30 ms 79.4%
comments#create 38 ms 100.0%