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# IT明星不是梦 # 图解kubernetes资源QOS机制实现原理-8小时
source link: https://blog.51cto.com/srexin/2472354
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QOS是k8s中一种资源保护机制，其主要是针对不可压缩资源比如的内存的一种控制技术，比如在内存中其通过为不同的Pod和容器构造OOM评分，并且通过内核的策略的辅助，从而实现当节点内存资源不足的时候，内核可以按照策略的优先级，优先kill掉哪些优先级比较低(分值越高优先级越低)的Pod，今天来分析下背后的实现
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