Skip to main content
Upsun Cloud Continuous Profiler is powered by Upsun Blackfire. It is available directly from the Console, under Apps and Services → your app → Profiling. The Ruby continuous profiling is currently made across 3 dimensions:
  • CPU Time: Time spent running on the CPU
  • Wall-time: elapsed time per function call
  • Allocations: Time spent running on the CPU
The default sampling frequency is 100 Hz. This means the Ruby continuous profiler is collecting information 100 times per second.

​
Prerequisites

Upsun Cloud Continuous Profiler requires Ruby >= 3.0.

​
Installation

  1. Add the datadog gem to your Gemfile or gems.rb file:
  1. Install the gems running the bundle install command.
  2. Add the ddprofrb exec command to your Ruby application start command:
Rails example:
Alternatively, start the profiler by adding the following code in your application’s entry point if you can’t start it using ddprofrb exec:
Last modified on September 16, 2026