Request Details

Route
/slow GET
Timestamp
Sep 17, 2026 9:16 PM
Duration
327.41 ms
Status
204
Response Size
91 KB
Error
No

Performance Breakdown

Database
3.0% (7 queries)
View Rendering
4.8%
Application Logic
92.2%
Other Operations
0.0%
Total Operations
28
Slowest Operation
327.41 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 1065.7ms 2131.4ms 3197.2ms 4262.9ms

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 327 ms 100.0%
home#slow 327 ms 100.0%
home#slow 327 ms 100.0%
home#slow 327 ms 100.0%
posts/show 36 ms 11.0%
home#slow 327 ms 100.0%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 3 ms 0.9%
home#slow 327 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 35 ms 10.7%
home#slow 327 ms 100.0%
home/index 18 ms 5.5%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 25 ms 7.6%
home#slow 327 ms 100.0%
home#slow 327 ms 100.0%
layouts/application 13 ms 4.0%
SELECT * FROM posts WHERE created_at > ? 8 ms 2.4%
users/index 33 ms 10.1%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 24 ms 7.3%
home#slow 327 ms 100.0%
posts/show 38 ms 11.6%
DELETE FROM posts WHERE id = ? 31 ms 9.5%
users/index 8 ms 2.4%
home#slow 327 ms 100.0%
users/index 27 ms 8.2%
posts/show 18 ms 5.5%
users/index 15 ms 4.6%
home#slow 327 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 2 ms 0.6%