PrometheusReceiver Testing - Benchmarks

[ArthurSens]

Component(s)

receiver/prometheus

Describe the issue you're reporting

Currently, there's only one benchmark in the entire Receiver's codebase. Such benchmarks cover a tiny subset of functionalities.

We want benchmarks that covers the whole functionality of Prometheus Receiver, and that would be:

• Scraping different protocols:
  • Prometheus Text
  • Prometheus Protobuf
  • OpenMetrics
• Different metric types
  • The usual - Gauge, Counter, Summaries, Classic Histograms
  • With Native Histograms and Native Histograms Custom Buckets
• Different data patterns
  • With/without target_info metrics
  • With/without Scope labels

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Additionally, benchmark results MUST be linked in the component's README.

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[github-actions]

Pinging code owners:

• receiver/prometheus: @Aneurysm9 @dashpole @ArthurSens @krajorama

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