Request Details

Route
/posts/:id PUT
Timestamp
Sep 22, 2026 5:33 AM
Duration
43.15 ms
Status
201
Response Size
4.6 KB
Error
No

Performance Breakdown

Database
33.1% (4 queries)
View Rendering
12.6%
Application Logic
54.3%
Other Operations
0.0%
Total Operations
8
Slowest Operation
43.15 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 59.6ms 119.2ms 178.8ms 238.4ms

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 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 > ? 8 ms 18.5%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 32 ms 74.2%
posts#update 43 ms 100.0%
home/index 30 ms 69.5%
posts#update 43 ms 100.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 30 ms 69.5%
posts#update 43 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 9 ms 20.9%