Request Details

Route
/slow GET
Timestamp
Sep 22, 2026 7:51 PM
Duration
415.28 ms
Status
201
Response Size
130 KB
Error
No

Performance Breakdown

Database
5.4% (9 queries)
View Rendering
4.2%
Application Logic
90.5%
Other Operations
0.0%
Total Operations
20
Slowest Operation
415.28 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 688.7ms 1377.3ms 2066.0ms 2754.7ms

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
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 33 ms 7.9%
home#slow 415 ms 100.0%
home#slow 415 ms 100.0%
SELECT * FROM users WHERE id = ? 3 ms 0.7%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 29 ms 7.0%
home#slow 415 ms 100.0%
layouts/application 18 ms 4.3%
home#slow 415 ms 100.0%
posts/show 31 ms 7.5%
users/index 8 ms 1.9%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 15 ms 3.6%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 23 ms 5.5%
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... 2 ms 0.5%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 21 ms 5.1%
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... 6 ms 1.4%
home/index 40 ms 9.6%
home#slow 415 ms 100.0%
home/index 18 ms 4.3%
home#slow 415 ms 100.0%
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... 16 ms 3.9%