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[程序员] [讨论及求助] 容器化下的 cpu 调度问题

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[背景说明 1 ] 采用某为的硬件设配上搭建的 k8s 集群,部署 java 镜像应用,传统的 spring cloud 全家桶;

[背景说明 2 ] 进行压力测试,整体上负载不高的情况下,运行正常(监控整体 cpu 压力在 10%左右);

[奇怪的现象] 尝试给正在运行的服务,每 5 分钟执行 1-2 秒的 cpu 密集型任务时(单线程执行浮点数乘法运算),这时,正在执行的压力测试结果会有明显的 tps 下降现象,监控中 cpu 上升 1%-2%。

[疑惑] 整体上 pod 的压力并不是很大,为何稍微执行一下任务,测试结果会出现如此大的波动呢?

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