Crank 是微軟新出的一個性能測試框架，集成了多種基準測試工具，如bombardier、wrk等。
Crank通過統一的配置，可以轉換成不同基準測試工具命令進行測試。可參考Bombardier Job實現。

安裝Crank

運行如下兩個命令分別安裝Crank的cli(Controller)和Agent。
dotnet tool update Microsoft.Crank.Controller --version "0.2.0-*" --global
dotnet tool update Microsoft.Crank.Agent--version "0.2.0-*" --global

需要.Net SDK 5.0環境

安裝完成后執行命令crank，會打印出如下可以配置的參數和介紹，或者github查看相關參數介紹。

PS C:\Users\Stack\Desktop> crank Crank Benchmarks ControllerThe Crank controller orchestrates benchmark jobs on Crank agents.Usage: Crank [command] [options]Options:-?|-h|--help Show help information-c|--config Configuration file or url-s|--scenario Scenario to execute-j|--job Name of job to define--profile Profile name--script Execute a named script available in the configuration files. Can be used multiple times.-j|--json Saves the results as json in the specified file.--csv Saves the results as csv in the specified file.--compare An optional filename to compare the results to. Can be used multiple times.--variable Variable--sql Connection string of the SQL Server Database to store results in--table Table name of the SQL Database to store results in--session A logical identifier to group related jobs.--description A string describing the job.-p|--property Some custom key/value that will be added to the results, .e.g. --property arch=arm --propertyos=linux

執行crank-agent，啟動基準測試所需的代理服務。github查看相關參數介紹。

PS C:\Users\Stack\Desktop> crank-agent Hosting environment: Production Content root path: C:\Users\Stack\.dotnet\tools\.store\microsoft.crank.agent\0.2.0-alpha.21567.1\microsoft.crank.agent\0.2.0-alpha.21567.1\tools\net5.0\any\ Now listening on: http://[::]:5010

創建Crank配置文件

配置文件參考官方hello.benchmarks.yml示例
示例文件中引入了bombardier.yml，由于大環境對githubusercontent.com域名不太友好，可以考慮將bombardier.yml下載到本地，imports引入本地路徑或者直接將文件內容加入到新建的配置文件。

imports:-https://raw.githubusercontent.com/dotnet/crank/main/src/Microsoft.Crank.Jobs.Bombardier/bombardier.yml

生產中使用推薦imports文件的方式，crank配置文件中做少量配置就可以完成基準測試，并且可以引入不同的Microsoft.Crank.Jobs.XXX/XXX.yml,基于不同的基準測試工具進行測試。
其他測試工具配置文件都在https://github.com/dotnet/crank/blob/main/src/Microsoft.Crank.XXX下。

variables:headers:none: ''plaintext: '--header "Accept: text/plain,text/html;q=0.9,application/xhtml+xml;q=0.9,application/xml;q=0.8,*/*;q=0.7" --header "Connection: keep-alive"'html: '--header "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" --header "Connection: keep-alive"'json: '--header "Accept: application/json,text/html;q=0.9,application/xhtml+xml;q=0.9,application/xml;q=0.8,*/*;q=0.7" --header "Connection: keep-alive"'connectionclose: '--header "Connection: close"'presetHeaders: nonejobs:bombardier:source:repository: https://github.com/dotnet/crank.gitbranchOrCommit: mainproject: src/Microsoft.Crank.Jobs.Bombardier/Microsoft.Crank.Jobs.Bombardier.csprojsourceKey: bombardiernoBuild: truereadyStateText: Bombardier ClientwaitForExit: truevariables:connections: 256 #設置連接數warmup: 15 #設置測試預熱次數duration: 15 #設置測試時間requests: 0 #設置測試請求實例數rate: 0 #設置每秒請求頻率transport: fasthttp # | http1 | http2 設置使用golang的fasthttp庫發送http請求serverScheme: httpserverAddress: localhostserverPort: 5000path: bodyFile: # path or url for a file to use as the body contentverb: # GET when nothing is specifiedcustomHeaders: [ ] # list of headers with the format: '<name1>: <value1>', e.g. [ 'content-type: application/json' ]arguments: "-c {{connections}} -w {{warmup}} -d {{duration}} -n {{requests}} --insecure -l {% if rate != 0 %} --rate {{ rate }} {% endif %} {% if transport %} --{{ transport}} {% endif %} {{headers[presetHeaders]}} {% for h in customHeaders %}{% assign s = h | split : ':' %}--header \"{{ s[0] }}: {{ s[1] | strip }}\" {% endfor %} {% if serverUri == blank or serverUri == empty %} {{serverScheme}}://{{serverAddress}}:{{serverPort}}{{path}} {% else %} {{serverUri}}:{{serverPort}}{{path}} {% endif %} {% if bodyFile != blank and bodyFile != empty %} -f {{bodyFile}} {% endif %} {% if verb != blank and verb != empty %} -m {{verb}} {% endif %}"onConfigure: # - job.timeout = Number(job.variables.duration) + Number(job.variables.warmup) + 10;server:source: #指定需要測試的項目，本文直接使用本地路徑localFolder: .project: crank_demo.csprojreadyStateText: Application started.# source: 指定測試項目的遠程倉庫地址，并通過branchOrCommit指定分支# repository: https://github.com/dotnet/crank# branchOrCommit: main# project: samples/hello/hello.csproj# readyStateText: Application started.scenarios: #配置基準測試場景crank_demo: #定義方案名，執行crank命令時指定該名稱application: job: server # 指定測試項目為上面定義的serverload:job: bombardier # 指定測試工具bombardiervariables:serverPort: 5000 #配置http服務端口path: / #配置http服務地址profiles:local:variables:serverAddress: localhostjobs: application:endpoints: - http://localhost:5010load:endpoints: - http://localhost:5010

啟動Crank-Agent

啟動agent后執行crank，會有一個如下安裝sdk的動作

[09:29:05.261] Runtime: 6.0.0 (Current) [09:29:05.262] SDK: 6.0.100 (Current) [09:29:05.263] ASP.NET: 6.0.0 (Current) [09:29:05.265] Creating custom global.json [09:29:05.266] Desktop: 6.0.0 (Current) [09:29:05.266] Installing SDK '6.0.100' ...

所以啟動agent時多指定一個dotnethome參數，避免重復安裝sdk。

crank-agent --dotnethome 'C:\Program Files\dotnet'

啟動Crank

crank --config .\demo.benchmarks.yml --scenario crank_demo --profile local

--scenario crank_demo: 指定定義的測試場景
--profile local :設置輸出結果到本地，即控制臺輸出

可以通過參數指定結果輸出到本地json文件（--output results.json ）或者數據庫（--sql [connection-string] --table [table-name]）

結果輸出

這里省略壓測期間的日志輸出，直接列出結果。

| application | | | --------------------- | ------------- | | CPU Usage (%) | 56 | | Cores usage (%) | 447 | | Working Set (MB) | 140 | | Private Memory (MB) | 157 | | Build Time (ms) | 7,232 | | Start Time (ms) | 501 | | Published Size (KB) | 91,292 | | .NET Core SDK Version | 6.0.100 | | ASP.NET Core Version | 6.0.0+ae1a6cb | | .NET Runtime Version | 6.0.0+4822e3c || load | | | --------------------- | -------------- | | CPU Usage (%) | 46 | | Cores usage (%) | 370 | | Working Set (MB) | 29 | | Private Memory (MB) | 30 | | Build Time (ms) | 11,891 | | Start Time (ms) | 226 | | Published Size (KB) | 68,228 | | .NET Core SDK Version | 3.1.415 | | ASP.NET Core Version | 3.1.21+458d974 | | .NET Runtime Version | 3.1.21+df8abc0 | | First Request (ms) | 185 | | Requests | 912,005 | | Bad responses | 0 | | Mean latency (us) | 4,207 | | Max latency (us) | 138,999 | | Requests/sec | 60,305 | | Requests/sec (max) | 128,523 |

更多

crank readme：https://github.com/dotnet/crank/blob/main/docs/README.md

Benchmarks?crank為Benchmarks重構版本
本文示例代碼：https://github.com/MayueCif/crank_demo

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