Request Details

Route
/comments POST
Timestamp
Sep 23, 2026 4:44 AM
Duration
32.45 ms
Status
204
Response Size
3.9 KB
Error
No

Performance Breakdown

Database
39.5% (4 queries)
View Rendering
21.6%
Application Logic
38.9%
Other Operations
0.0%
Total Operations
8
Slowest Operation
32.45 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 41.7ms 83.5ms 125.2ms 166.9ms

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 32 ms 100.0%
comments#create 32 ms 100.0%
DELETE FROM posts WHERE id = ? 2 ms 6.2%
posts/show 26 ms 80.1%
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 > ? 30 ms 92.4%
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... 26 ms 80.1%
SELECT * FROM users WHERE id = ? 8 ms 24.7%
posts/show 10 ms 30.8%