Request Details

Route
/slow GET
Timestamp
Sep 23, 2026 5:00 AM
Duration
540.39 ms
Status
201
Response Size
100 KB
Error
No

Performance Breakdown

Database
7.5% (5 queries)
View Rendering
19.7%
Application Logic
72.8%
Other Operations
0.0%
Total Operations
19
Slowest Operation
540.39 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 371.2ms 742.4ms 1113.6ms 1484.8ms

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/index 15 ms 2.8%
layouts/application 37 ms 6.8%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 23 ms 4.3%
users/index 38 ms 7.0%
home#slow 540 ms 100.0%
layouts/application 21 ms 3.9%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 25 ms 4.6%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 34 ms 6.3%
layouts/application 39 ms 7.2%
posts/show 13 ms 2.4%
SELECT * FROM posts WHERE created_at > ? 14 ms 2.6%
home#slow 540 ms 100.0%
posts/show 35 ms 6.5%
users/index 27 ms 5.0%
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... 15 ms 2.8%
users/index 11 ms 2.0%
layouts/application 29 ms 5.4%
home/index 14 ms 2.6%
layouts/application 14 ms 2.6%