Request Details

Route
/sign_in GET|POST
Timestamp
Sep 15, 2026 7:52 PM
Duration
92.28 ms
Status
200
Response Size
9.1 KB
Error
No

Performance Breakdown

Database
50.5% (5 queries)
View Rendering
16.2%
Application Logic
33.3%
Other Operations
0.0%
Total Operations
8
Slowest Operation
92.28 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 69.3ms 138.6ms 208.0ms 277.3ms

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
posts/show 38 ms 41.2%
home/index 7 ms 7.6%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 25 ms 27.1%
SELECT * FROM posts WHERE created_at > ? 29 ms 31.4%
sessions#new 92 ms 100.0%
SELECT * FROM users WHERE id = ? 35 ms 37.9%
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... 28 ms 30.3%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 23 ms 24.9%