Skip to main content

Documentation Index

Fetch the complete documentation index at: https://developer.upsun.com/llms.txt

Use this file to discover all available pages before exploring further.

Upsun Continuous Profiler is powered by Blackfire. It is available directly from the Console, under Apps and Services → your app → Profiling. The Java continuous profiling is currently made across 3 dimensions:
  • CPU Time: Time spent running on the CPU
  • Allocations: Time spent running on the CPU
  • Allocated Memory: Number of bytes allocated
The default sampling frequency is 100 Hz. This means the Java continuous profiler is collecting information 100 times per second.

​
Prerequisites

Upsun Continuous Profiler requires Java >= 21.

​
Configuration

The Java continuous profiler is enabled by default without configuration.
Last modified on April 3, 2026