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[proposal] CPUNormalization can amplify cpu via cfs_quota #2062

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LGTH opened this issue May 24, 2024 · 0 comments
Open

[proposal] CPUNormalization can amplify cpu via cfs_quota #2062

LGTH opened this issue May 24, 2024 · 0 comments
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@LGTH
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LGTH commented May 24, 2024

What is your proposal:
目前1.4版本的CPU归一化只能缩小cfs_quota的值,用于压榨CPU好的节点性能,让更多Pod能调度上去,但我让其支持可以扩大cfs_quota的值,用于拉起不同类型的CPU节点性能水平。

Why is this needed:
如场景:有一个应用,为支持1w的QPS,设置副本数为10,需要规格为4C-8G。这是在intel上的标准,如果是在Hygon上,则需要6C-8G的规格,副本数则为10个副本。在一个混合节点的集群中,资源画像可以解决大部分问题,但不够优雅,而且管理起来会有些问题,比如为了可靠性按照最低的规格去申请资源,会有一部分浪费,而且应用方不关注底层是哪种CPU。

Is there a suggested solution, if so, please add it:
所以是否可以让归一化能力支持扩大设置,另外是否可以考虑针对不同的应用Pod,去开启。毕竟不同应用的敏感度不一样,可以按需开启,而不是对节点上所有的pod都开启。

@LGTH LGTH added the kind/proposal Create a report to help us improve label May 24, 2024
@saintube saintube changed the title [proposal] CPUNormalization can amplificat cfs_quota of cpu [proposal] CPUNormalization can amplify cpu via cfs_quota May 28, 2024
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