Request Details

Route
/comments POST
Timestamp
Sep 10, 2026 4:01 PM
Duration
70.81 ms
Status
200
Response Size
20 KB
Error
No

Performance Breakdown

Database
31.5% (3 queries)
View Rendering
6.6%
Application Logic
61.9%
Other Operations
0.0%
Total Operations
6
Slowest Operation
70.81 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 57.2ms 114.3ms 171.5ms 228.6ms

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.*, 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... 17 ms 24.0%
comments#create 71 ms 100.0%
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 > ? 32 ms 45.2%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 23 ms 32.5%
comments#create 71 ms 100.0%
home/index 15 ms 21.2%