Request Details

Route
/comments POST
Timestamp
Sep 12, 2026 4:59 PM
Duration
12.48 ms
Status
204
Response Size
23 KB
Error
No

Performance Breakdown

Database
52.8% (3 queries)
View Rendering
47.2%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
6
Slowest Operation
26.0 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
View
Database
0.0ms 26.5ms 53.0ms 79.5ms 106.0ms

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
layouts/application 16 ms 128.3%
DELETE FROM comments WHERE created_at < ? 11 ms 88.2%
SELECT COUNT(*) FROM comments WHERE post_id = ? 25 ms 200.4%
posts/show 26 ms 208.4%
layouts/application 8 ms 64.1%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 20 ms 160.3%