Request Details

Route
/slow GET
Timestamp
Sep 23, 2026 4:45 AM
Duration
325.79 ms
Status
200
Response Size
82 KB
Error
No

Performance Breakdown

Database
1.9% (5 queries)
View Rendering
8.9%
Application Logic
89.2%
Other Operations
0.0%
Total Operations
22
Slowest Operation
325.79 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 730.6ms 1461.2ms 2191.8ms 2922.3ms

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
home#slow 326 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 2 ms 0.6%
SELECT name FROM users 7 ms 2.1%
users/index 31 ms 9.5%
SELECT * FROM posts WHERE created_at > ? 32 ms 9.8%
home/index 40 ms 12.3%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 5 ms 1.5%
home#slow 326 ms 100.0%
home#slow 326 ms 100.0%
home/index 39 ms 12.0%
users/index 35 ms 10.7%
layouts/application 24 ms 7.4%
home#slow 326 ms 100.0%
layouts/application 13 ms 4.0%
home#slow 326 ms 100.0%
home#slow 326 ms 100.0%
posts/show 26 ms 8.0%
users/index 20 ms 6.1%
home#slow 326 ms 100.0%
home#slow 326 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... 10 ms 3.1%
home/index 32 ms 9.8%