实现一个高效的滑动时间窗口计数器 - V2EX
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roy2220
V2EX    Go 编程语言

实现一个高效的滑动时间窗口计数器

  •  1
     
  •   roy2220 2023-01-27 11:03:24 +08:00 2549 次点击
    这是一个创建于 995 天前的主题,其中的信息可能已经有所发展或是发生改变。

    适合用于计算最近一段时间的样本均值

    典型应用场景:成功率限流、QPS 限流

    https://github.com/go-tk/stw

    10 条回复    2023-01-29 10:33:22 +08:00
    toomoy
        1
    toomoy  
       2023-01-27 13:24:14 +08:00
    集群做不到统一滑动吧?
    melkor
        2
    melkor  
       2023-01-27 13:25:40 +08:00 via iPhone
    @toomoy 当然是各自滑各自的
    slowman
        3
    slowman  
       2023-01-27 15:43:12 +08:00
    没有 benchmark 怎么能说高效呢
    GopherDaily
        4
    GopherDaily  
       2023-01-28 02:24:57 +08:00
    为什么有成熟稳定大规模落地的东西不直接用呢?

    退一步将,大多数时候看汽车轮子比造牛车轮子的收益大很多
    Nazz
        5
    Nazz  
       2023-01-28 08:50:29 +08:00
    普罗米修斯怎么样
    julyclyde
        6
    julyclyde  
       2023-01-28 09:47:11 +08:00
    @GopherDaily 评职称
    roy2220
        7
    roy2220  
    OP/div>
       2023-01-28 16:51:22 +08:00 via iPhone
    @GopherDaily 关于滑动时间窗口计数器,我的实现思路非常"取巧",代码短少,翻了一下 github 还没找到和我思路类似的实现,可以把你认为成熟实现贴出来和大家分享
    ddd1
        8
    ddd1  
       2023-01-28 17:16:27 +08:00
    roy2220
        9
    roy2220  
    OP
       2023-01-28 19:07:49 +08:00
    @ddd1 已经看过了,你能说说 sentinel-golang 实现的滑动时间窗口有啥亮点吗?
    ddd1
        10
    ddd1  
       2023-01-29 10:33:22 +08:00
    @roy2220 没做过对比
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