Request Details

Route
/ GET
Timestamp
Sep 14, 2026 2:12 PM
Duration
77.19 ms
Status
204
Response Size
15 KB
Error
No

Performance Breakdown

Database
27.3% (6 queries)
View Rendering
16.1%
Application Logic
56.5%
Other Operations
0.0%
Total Operations
12
Slowest Operation
77.19 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 102.4ms 204.8ms 307.2ms 409.6ms

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 21 ms 27.2%
SELECT name FROM users 23 ms 29.8%
home#index 77 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 17 ms 22.0%
home#index 77 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... 15 ms 19.4%
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... 4 ms 5.2%
users/index 13 ms 16.8%
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... 27 ms 35.0%
home#index 77 ms 100.0%
posts/show 32 ms 41.5%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 26 ms 33.7%