Request Details

Route
/ GET
Timestamp
Sep 09, 2026 1:28 PM
Duration
69.11 ms
Status
204
Response Size
19 KB
Error
No

Performance Breakdown

Database
11.8% (4 queries)
View Rendering
16.6%
Application Logic
71.7%
Other Operations
0.0%
Total Operations
15
Slowest Operation
69.11 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 144.7ms 289.3ms 434.0ms 578.6ms

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
layouts/application 10 ms 14.5%
home#index 69 ms 100.0%
home/index 23 ms 33.3%
home#index 69 ms 100.0%
home#index 69 ms 100.0%
home#index 69 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 > ? 1 ms 1.4%
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... 28 ms 40.5%
home#index 69 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... 28 ms 40.5%
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 > ? 11 ms 15.9%
posts/show 13 ms 18.8%
posts/show 22 ms 31.8%
posts/show 28 ms 40.5%
home#index 69 ms 100.0%