giltene/wrk2
Wrk2
wrk2 este un instrument de benchmarking HTTP de înaltă performanță și un generator de sarcină cu throughput constant. Este conceput pentru a măsura stabilitatea și throughput-ul serverului prin trimiterea unui număr fix de cereri pe secundă, funcționând ca un profiler de latență de înaltă rezoluție și un tester de performanță scriptabil în Lua.
Instrumentul se distinge printr-o interfață scriptabilă care utilizează un compilator just-in-time de înaltă performanță pentru a defini formate complexe de cerere și logică personalizată de raportare a răspunsurilor. Utilizează histograme de înaltă rezoluție pentru a captura distribuții precise ale timpului de răspuns și date de latență la percentile înalte.
Proiectul acoperă capabilități largi în generarea de sarcină, analiza latenței de înaltă precizie și simularea sarcinilor de lucru. Acestea includ capacitatea de a înregistra spectre detaliate de percentile pentru a identifica blocajele de performanță și execuția de scripturi personalizate pentru sarcini de lucru HTTP pentru a automatiza rezultatele benchmark-urilor.
Features
- Performance Benchmarkers - Functions as a tool for measuring and comparing the performance and stability of web services under constant workloads.
- Scriptable Benchmark Engines - Uses an embedded Lua scripting engine to define complex performance test scenarios and request formats.
- Custom Request Logic Execution - Executes custom Lua logic to generate tailored HTTP requests and implement custom response reporting.
- JIT-Compiled Request Scripting - Provides an embedded LuaJIT engine to define complex request formats and custom response reporting logic with minimal overhead.
- Load Generation - Generates high volumes of network requests across multiple connections to benchmark server stability.
- Constant Throughput Generators - Sends a fixed number of requests per second to evaluate how server stability holds under a constant load.
- Constant-Rate Request Schedulers - Implements a precise timer mechanism to dispatch requests at a fixed frequency regardless of target response time.
- Latency Histograms - Uses high-resolution histograms to aggregate response time data for precise percentile calculation.
- Latency Profilers - Employs histograms to record precise response time distributions and extract high-percentile latency data.
- High-Precision Latency Analysis - Records detailed response time distributions to provide precise high-percentile timing data and identify bottlenecks.
- HTTP Endpoint Benchmarking - Measures the throughput and response speed of HTTP endpoints using a high-performance, scriptable engine.
- HTTP Load Testing - Generates a steady volume of HTTP requests to evaluate the stability and capacity of web servers.
- Workload Simulations - Allows the definition of specific request patterns through scriptable logic to mimic realistic production traffic.
- Custom Benchmark Scenarios - Provides scriptable definitions of performance tests to simulate specific application behaviors and request formats.
- Network I/O Multiplexing - Utilizes system-level multiplexing to efficiently handle thousands of concurrent network connections.
- Multi-Threaded Event Distribution - Distributes network I/O across multiple worker threads to maximize throughput and minimize measurement interference.
- Tail Latency Measurement - Tracks high-percentile response times using high-resolution histograms to identify tail latency bottlenecks.
- Percentile Distribution Computation - Calculates value distributions and percentiles using histograms to produce detailed response time spectrums.
- Command Line Tools - Listed in the “Command Line Tools” section of the The Book Of Secret Knowledge awesome list.
- Garbage Collection - A constant throughput, correct latency recording variant of wrk.
- Load Testing Tools - Constant throughput variant of a classic benchmarking tool.
- HTTP Security - Constant throughput variant of wrk with latency recording.
