Request Details

Route
/slow GET
Timestamp
Sep 12, 2026 8:52 AM
Duration
281.76 ms
Status
200
Response Size
160 KB
Error
No

Performance Breakdown

Database
2.7% (3 queries)
View Rendering
7.7%
Application Logic
89.6%
Other Operations
0.0%
Total Operations
19
Slowest Operation
281.76 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 628.8ms 1257.5ms 1886.3ms 2515.0ms

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
posts/show 16 ms 5.7%
home/index 40 ms 14.2%
home#slow 282 ms 100.0%
layouts/application 28 ms 9.9%
home#slow 282 ms 100.0%
users/index 32 ms 11.4%
home#slow 282 ms 100.0%
home#slow 282 ms 100.0%
home/index 25 ms 8.9%
home#slow 282 ms 100.0%
posts/show 20 ms 7.1%
home#slow 282 ms 100.0%
home/index 17 ms 6.0%
SELECT name FROM users 26 ms 9.2%
home#slow 282 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 25 ms 8.9%
home#slow 282 ms 100.0%
layouts/application 15 ms 5.3%
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... 17 ms 6.0%