Request Details

Route
/slow GET
Timestamp
Sep 22, 2026 7:12 AM
Duration
434.22 ms
Status
204
Response Size
180 KB
Error
No

Performance Breakdown

Database
2.3% (8 queries)
View Rendering
1.5%
Application Logic
96.3%
Other Operations
0.0%
Total Operations
24
Slowest Operation
434.22 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 1240.4ms 2480.7ms 3721.1ms 4961.4ms

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
DELETE FROM posts WHERE id = ? 23 ms 5.3%
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... 17 ms 3.9%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 1 ms 0.2%
home#slow 434 ms 100.0%
home#slow 434 ms 100.0%
users/index 9 ms 2.1%
home#slow 434 ms 100.0%
posts/show 6 ms 1.4%
home#slow 434 ms 100.0%
home#slow 434 ms 100.0%
layouts/application 19 ms 4.4%
home#slow 434 ms 100.0%
home/index 20 ms 4.6%
home#slow 434 ms 100.0%
layouts/application 19 ms 4.4%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 10 ms 2.3%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 3 ms 0.7%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 32 ms 7.4%
home#slow 434 ms 100.0%
home#slow 434 ms 100.0%
home#slow 434 ms 100.0%
SELECT * FROM users WHERE id = ? 8 ms 1.8%
home#slow 434 ms 100.0%
SELECT name FROM users 18 ms 4.1%