Request Details

Route
/slow GET
Timestamp
Sep 23, 2026 1:26 AM
Duration
224.02 ms
Status
201
Response Size
110 KB
Error
No

Performance Breakdown

Database
33.9% (10 queries)
View Rendering
26.1%
Application Logic
40.0%
Other Operations
0.0%
Total Operations
18
Slowest Operation
224.02 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 140.0ms 280.0ms 420.0ms 560.0ms

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
home/index 40 ms 17.9%
home/index 11 ms 4.9%
posts/show 6 ms 2.7%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 10 ms 4.5%
DELETE FROM posts WHERE id = ? 28 ms 12.5%
users/index 12 ms 5.4%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 13 ms 5.8%
SELECT * FROM posts WHERE created_at > ? 18 ms 8.0%
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... 19 ms 8.5%
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... 27 ms 12.1%
home/index 38 ms 17.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 9 ms 4.0%
SELECT * FROM users WHERE id = ? 20 ms 8.9%
home/index 32 ms 14.3%
posts/show 7 ms 3.1%
SELECT * FROM users WHERE id = ? 26 ms 11.6%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 20 ms 8.9%
home#slow 224 ms 100.0%