Request Details

Route
/slow GET
Timestamp
Sep 19, 2026 11:44 PM
Duration
648.34 ms
Status
204
Response Size
110 KB
Error
No

Performance Breakdown

Database
5.5% (7 queries)
View Rendering
3.9%
Application Logic
90.5%
Other Operations
0.0%
Total Operations
16
Slowest Operation
648.34 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 716.3ms 1432.7ms 2149.0ms 2865.4ms

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
home#slow 648 ms 100.0%
users/index 36 ms 5.6%
home#slow 648 ms 100.0%
home#slow 648 ms 100.0%
layouts/application 6 ms 0.9%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 26 ms 4.0%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 17 ms 2.6%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 16 ms 2.5%
home/index 7 ms 1.1%
home#slow 648 ms 100.0%
home/index 36 ms 5.6%
SELECT * FROM posts WHERE created_at > ? 29 ms 4.5%
posts/show 28 ms 4.3%
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... 32 ms 4.9%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 19 ms 2.9%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 20 ms 3.1%