壓測利器：TarsBenchmark正確打開方式

{"type":"doc","content":[{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"一、TarsBenchmark是什麼"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":3},"content":[{"type":"text","text":"1. 常見測壓工具"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/8d\/7f\/8d6884afff6083eb4f1702b39986197f.png","alt":null,"title":null,"style":null,"href":null,"fromPaste":true,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"我們在服務後臺的一些APP上線之前，通常會做一些性能的評估，然後會評測一下。例如開發的項目大概可以服務多少用戶，以及能夠承擔多大的併發量？"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":4},"content":[{"type":"text","text":"（1）Apache Bench"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"經典的性能評測工具AB，也叫Apche Beach，它是一個http協議服務的壓測工具，也是衆多WebAPP 的經典壓測工具，採用C語言開發，方便易用也具備較好的性能。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"但是它也有不足的地方，主要在於它採用的是單線程模式，而我們現在後臺的服務器很多都是多核，因此它不能發揮我們服務器的全部性能。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":4},"content":[{"type":"text","text":"（2）Wrk"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"新的壓測工具Wrk，它彌補了AB單線程設計的不足。它採用的網絡是事件驅動的方式，在網絡IO方面有比較好的表現。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"另外它支持腳本語言。可以在lua生成一些隨機內容。現在大部分後臺的服務都是採用分佈式的部署，如果僅對某一個請求不斷的重放，容易導致單機高負載，而不能反應真實集羣的服務能力。而wrk在這兩方面進行了改進，因此它的應用非常地廣泛。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":4},"content":[{"type":"text","text":"（3）GHZ"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在微服務裏還有一個很典型的壓測工具GHZ，他是GRPC框架下的一個壓測工具，開發語言是golong，因此具備很好的併發能力。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}}]}