Request Details

Route
/ GET
Timestamp
Sep 18, 2026 10:09 AM
Duration
90.14 ms
Status
200
Response Size
21 KB
Error
No

Performance Breakdown

Database
9.2% (5 queries)
View Rendering
9.3%
Application Logic
81.5%
Other Operations
0.0%
Total Operations
14
Slowest Operation
90.14 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 166.0ms 331.9ms 497.9ms 663.9ms

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
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... 30 ms 33.3%
home#index 90 ms 100.0%
home#index 90 ms 100.0%
layouts/application 18 ms 20.0%
home#index 90 ms 100.0%
layouts/application 21 ms 23.3%
home#index 90 ms 100.0%
posts/show 23 ms 25.5%
home#index 90 ms 100.0%
SELECT * FROM users WHERE id = ? 9 ms 10.0%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 1 ms 1.1%
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... 3 ms 3.3%
home#index 90 ms 100.0%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 18 ms 20.0%