Amazon RDS如何计算I / O速率？ [英] How does Amazon RDS calculate I/O rate?

问题描述

我今天浏览了Amazon RDS定价网站，现在想知道他们如何实际计算I / O速率？ 每100万个请求$ 0.10的真正含义是什么？

I browsed the Amazon RDS pricing site today and now do want to know how they actually calculate the I/O rate? What does "$0.10 per 1 million requests" really mean?

有人能举一些简单的例子吗？从EC2到RDS上的MySQL，一个简单的查询会产生多少个I / O？

Can anyone give some simple examples how many I/Os a simple query from EC2 to a MySQL on RDS produces?

推荐答案

通常，这是EBS存储服务的价格。 Amazon要求类似于这样的EBS（项目成本部分）：

In general it is a price for EBS storage service. Amazon claims something like this for EBS (section Projecting Costs):

例如，一个中型网站数据库的大小为
，可能为100 GB，并且在一个月的时间内平均每秒100次I / O 。
这将转化为每月$ 10的存储成本（100 GB x
$ 0.10 /月），大约每月$ 26的请求成本（〜2.6
百万秒/月x 100 I /每秒O * $ 0.10 /百万I / O）。

As an example, a medium sized website database might be 100 GB in size and expect to average 100 I/Os per second over the course of a month. This would translate to $10 per month in storage costs (100 GB x $0.10/month), and approximately $26 per month in request costs (~2.6 million seconds/month x 100 I/O per second * $0.10 per million I/O).

如果您在Linux上有正在运行的应用程序，请参阅本文 EBS的衡量成本：

If you have a running application on Linux, here is an article how to measure cost for EBS:

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