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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2021/03/26 10:25:00 UTC
[GitHub] [incubator-brpc] DannyLuoDan opened a new issue #1365: 将bvar::Adder和bvar::Window用在一起时，获取的数据代表什么意思
DannyLuoDan opened a new issue #1365:
URL: https://github.com/apache/incubator-brpc/issues/1365
static bvar::Adder<uint32_t> a_skip;
static bvar::Window<bvar::Adder<uint32_t>> _f_win("skip", "qps", &a_skip, 1);
类似这样的一个结构，a_skip 记录代码逻辑跳过的累积次数
那么这个时候skip_qps 这个数据代表的是什么意思？
是去读取Adder 1s内 a_skip的当前值，还是1s中a_skip 增加了多少值？
能作为qps指标(就是每秒skip了多少个)吗？
多谢帮助
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[GitHub] [incubator-brpc] DannyLuoDan commented on issue #1365: 将bvar::Adder和bvar::Window用在一起时，获取的数据代表什么意思
Posted by GitBox <gi...@apache.org>.
DannyLuoDan commented on issue #1365:
URL: https://github.com/apache/incubator-brpc/issues/1365#issuecomment-819300098
明白了，谢谢两位大佬
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[GitHub] [incubator-brpc] DannyLuoDan closed issue #1365: 将bvar::Adder和bvar::Window用在一起时，获取的数据代表什么意思
Posted by GitBox <gi...@apache.org>.
DannyLuoDan closed issue #1365:
URL: https://github.com/apache/incubator-brpc/issues/1365
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[GitHub] [incubator-brpc] hotaery commented on issue #1365: 将bvar::Adder和bvar::Window用在一起时，获取的数据代表什么意思
Posted by GitBox <gi...@apache.org>.
hotaery commented on issue #1365:
URL: https://github.com/apache/incubator-brpc/issues/1365#issuecomment-818495288
> > 参考文档：https://github.com/apache/incubator-brpc/blob/master/docs/cn/bvar_c++.md#quick-introduction
>
> 谢谢。不过就是这边有些不明白的地方：
> // bvar::Adder用于累加，下面定义了一个统计read error总数的Adder。
> bvar::Adder g_read_error;
> // 把bvar::Window套在其他bvar上就可以获得时间窗口内的值。
> bvar::Window<bvar::Adder > g_read_error_minute("foo_bar", "read_error", &g_read_error, 60);
> // ^ ^ ^
> // 前缀 监控项名称 60秒,忽略则为10秒
>
> 这边时间窗口内的值是什么值？假设时间窗口为1秒，g_read_error 当前已经累加到了15，后续有时候1s增加2，有时候1s增加3等， 那么foo_bar_read_error的值是 累加后的值 17 还是 2 或者3呀？
后者
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[GitHub] [incubator-brpc] cdjingit commented on issue #1365: 将bvar::Adder和bvar::Window用在一起时，获取的数据代表什么意思
Posted by GitBox <gi...@apache.org>.
cdjingit commented on issue #1365:
URL: https://github.com/apache/incubator-brpc/issues/1365#issuecomment-809268801
参考文档：https://github.com/apache/incubator-brpc/blob/master/docs/cn/bvar_c++.md#quick-introduction
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[GitHub] [incubator-brpc] DannyLuoDan commented on issue #1365: 将bvar::Adder和bvar::Window用在一起时，获取的数据代表什么意思
Posted by GitBox <gi...@apache.org>.
DannyLuoDan commented on issue #1365:
URL: https://github.com/apache/incubator-brpc/issues/1365#issuecomment-809865450
> 参考文档：https://github.com/apache/incubator-brpc/blob/master/docs/cn/bvar_c++.md#quick-introduction
谢谢。不过就是这边有些不明白的地方：
// bvar::Adder<T>用于累加，下面定义了一个统计read error总数的Adder。
bvar::Adder<int> g_read_error;
// 把bvar::Window套在其他bvar上就可以获得时间窗口内的值。
bvar::Window<bvar::Adder<int> > g_read_error_minute("foo_bar", "read_error", &g_read_error, 60);
// ^ ^ ^
// 前缀 监控项名称 60秒,忽略则为10秒
这边时间窗口内的值是什么值？假设时间窗口为1秒，g_read_error 当前已经累加到了15，后续有时候1s增加2，有时候1s增加3等， 那么foo_bar_read_error的值是 累加后的值 17 还是 2 或者3呀？
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