microsoft/ethr
Ethr
ethr 是一个命令行网络诊断工具和性能分析器，旨在测量 TCP、UDP 和 ICMP 协议的吞吐量、延迟和丢包率。它作为多线程网络吞吐量测试仪和用于分析客户端与服务器端点之间连接健康状况的诊断实用程序。
该项目通过专门的诊断功能（如 TCP 重传监控和双向路径分析）来识别非对称性能差异，从而脱颖而出。它提供了评估加密 HTTPS 连接开销的能力，并强制执行特定的 IP 版本以隔离协议特定的瓶颈。
其更广泛的功能涵盖网络路径追踪、抖动和延迟分析，以及确定最大数据包和连接速率的容量测试。该工具还从操作系统中提取原始网络指标，并提供实时接口统计信息。
测量结果和系统事件以结构化的终端表格呈现，并可导出为 JSON 文件以供离线审计。
Features
- Network Throughput Measurement Tools - Quantifies maximum data transfer rates, latency, and packet loss across TCP, UDP, and ICMP protocols.
- Network Performance Benchmarks - Measures maximum throughput, bandwidth, and connection rates across TCP, UDP, and ICMP protocols.
- Self-Hosted Servers - Hosts a private listener that accepts incoming performance tests and displays the results.
- Network Performance Analyzers - Calculates bandwidth, jitter, and connection rates between client and server endpoints to analyze performance.
- Measurement Endpoint Hosting - Listens on specified ports for TCP and UDP traffic to serve as a measurement endpoint.
- Multi-Protocol Performance Tools - Analyzes throughput, latency, and packet loss across TCP, UDP, and ICMP protocols.
- Network Latency Measurements - Tracks the time data takes to travel between endpoints and the variation in that delay.
- TCP Connection Health Diagnostics - Identifies network instability by tracking TCP retransmissions and analyzing connection health through system statistics.
- Retransmission Tracing - Extracts TCP segment retransmission counts from the operating system to identify network instability.
- Network Statistics Extraction - Extracts raw network metrics and TCP retransmission counts directly from operating system control files and interface counters.
- OS Network Metric Extraction - Extracts TCP-specific statistics from the operating system to analyze connection health.
- Jitter Analysis - Measures round-trip time, packet loss, and jitter to evaluate the stability of network connections.
- Network Diagnostic CLI Tools - Provides a terminal-based interface for mapping network paths and monitoring real-time interface statistics.
- Network Interface Statistics Collectors - Collects transmit and receive packet and byte counts from active network interfaces.
- Network Latency Testing - Tracks round-trip time, jitter, and packet loss to evaluate the stability and delay of network connections.
- Network Statistics Tracking - Tracks network device throughput and TCP retransmissions over specific intervals for real-time analysis.
- Parallel Bandwidth Saturation - Uses concurrent connections to saturate network bandwidth and determine maximum packet and connection rates.
- Client-Server Deployment Modes - Allows executing server and client operations in a decoupled configuration across different hosts.
- Asymmetric Path Analysis - Executes reverse tests from server to client to identify performance differences between upload and download paths.
- Route Tracing - Maps the route packets take to reach a destination to diagnose routing issues.
- Network Protocol Testing - Compares network behavior and speed across different versions of IP and encrypted HTTPS connections.
- IP Version Filters - Restricts network tests to IPv4 or IPv6 to isolate protocol-specific performance bottlenecks.
- Network Troubleshooting Tools - Maps the route packets take to a destination to diagnose and resolve routing and connectivity issues.
- Packet Rate Benchmarking - Calculates the total number of packets transmitted per second over a network using specific packet sizes.
- Traffic Shaping - Controls network tests by enforcing specific IP versions or using SSL encryption to isolate performance bottlenecks.
- Massive Connection Rate Generators - Determines the number of successful connections per second a server can handle via parallel sessions.
- Domain Connectivity Tests - Runs connectivity tests such as ping and connection rate checks against remote servers.
- Network Bottleneck Diagnosis - Analyzes socket states and transmission limits to locate network throughput bottlenecks.
- Real-Time Network Monitors - Collects real-time interface statistics and data rates to monitor bandwidth usage and identify bottlenecks.
- HTTPS Performance Testing - Measures network throughput over encrypted SSL/TLS connections to evaluate encryption overhead.
- Asymmetric Path Measurements - Initiates TCP performance measurements from the server back to the client to identify asymmetric paths.
- Command Line Tools - Listed in the “Command Line Tools” section of the The Book Of Secret Knowledge awesome list.
- Network Security - Network performance measurement tool for TCP, UDP, and HTTP.
