• rezolus

    eBPF-based telemetry agent that collects and processes systems telemetry. When fused with app metrics, it performs business-to-metal analysis of any application runtime. Recent versions ship with a built-in chart viewer and an MCP server.

  • rpc-perf

    Performance measurement tool for popular RPC services — Redis, Kafka, Memcached, gRPC — highlighting the relationship between throughput and latency distribution with detailed histograms.

  • llm-perf

    Benchmarking tool for LLM inference services. Detailed analysis of throughput, latency, and resource utilization across different models and serving configurations.

Cargo Crates
  • metriken

    Extremely efficient library for static metrics. Supports all metric types with an ergonomic, distributed declaration syntax.

    [QConSF’25 talk]
  • histogram

    h2histogram (base-2 HdrHistogram) designed for the hot path. Cheap to update, pre-allocates memory, and offers fine-grain precision control.

  • clocksource

    Precise and efficient access to system clocks for performance-sensitive applications.

  • ratelimit

    Token generation library for rate control in high-throughput, latency-sensitive scenarios such as load generation, traffic shaping, and latency measurement under precise request rates.

  • nvml-wrapper

    The most popular Rust wrapper of the NVIDIA Management Library. Originally by Jarek Samic (Cldfire); maintained by IOP Systems since 2024.