Request Details

Route
/posts/:id PUT
Timestamp
Sep 09, 2026 12:44 PM
Duration
41.19 ms
Status
400
Response Size
1.5 KB
Error
No

Performance Breakdown

Database
25.1% (3 queries)
View Rendering
31.0%
Application Logic
44.0%
Other Operations
0.0%
Total Operations
8
Slowest Operation
41.19 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 46.8ms 93.7ms 140.5ms 187.4ms

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... 25 ms 60.7%
posts#update 41 ms 100.0%
posts#update 41 ms 100.0%
posts/show 16 ms 38.8%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 7 ms 17.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 15 ms 36.4%
home/index 18 ms 43.7%
home/index 24 ms 58.3%