与 Google App Engine 相比,Windows Azure 的存储便宜的离谱 - V2EX
jeeson

与 Google App Engine 相比,Windows Azure 的存储便宜的离谱

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  •   jeeson Jul 16, 2013 4704 views
    This topic created in 4686 days ago, the information mentioned may be changed or developed.
    最近因为一个项目评估 Windows Azure,发现 Azure 的存储费用和 GAE 相比真的是便宜的离谱

    ==========
    存储空间费用
    GAE Datastore(High Replication):
    $0.006/ GByte-day

    Azure Table Storage:
    $0.095/GB-月(GEOGRAPHICALLY REDUNDANT) $0.07/GB-月(LOCALLY REDUNDANT)

    GAE Datastore 费用大概是 Azure Storage 的 2-2.5 倍

    ==========
    操作费用(这部分费用是重点):
    GAE Datastore:
    Datastore Write Operations $0.90/ Million Ops
    Datastore Read Operations $0.60/ Million Ops

    Azure Table Storage:
    $0.01 per 100,000 transactions,相当于1000万次读写操作 $1

    假设 写操作次数:读操作次数 = 1:2, GAE Datastore 相当于 Azure Table Storage 7 倍费用

    另外,GAE Datastore 创建/修改/删除时,key 另算 1 次写入,索引字段算 2 次写入,即便没有索引字段,一条记录也至少算 2 次写入。Azure Table Storage 这部分没有单独计费

    然后,Azure 是按照 transaction 计费的,一直不确定一个批量操作算一个 transactions 还是多个,直到找到这篇文章:http://blogs.msdn.com/b/windowsazurestorage/archive/2010/07/09/understanding-windows-azure-storage-billing-bandwidth-transactions-and-capacity.aspx

    “Both of these types of batch operations result in a single REST request to the storage service. Therefore, they count as a single transaction for each request.”

    "Table Save Changes (with SaveChangesOptions.Batch) with 100 entities = 1 transaction"

    "Table query doing a single storage request to return 500 entities (with no continuation tokens encountered) = 1 transaction"

    Batch 操作可以一次最多可以获得 1000 个记录,或者更新 100 条记录,按照一个 transaction 计算,相比 GAE Datastore 就更便宜了



    不知道是不是我理解有问题,有点离谱
    5 replies    1970-01-01 08:00:00 +08:00
    jeeson
        1
    jeeson  
    OP
       Jul 16, 2013
    觉得上边没说清楚,补充一下:

    假设一个类似 Google Reader 的应用,客户端一次同步请求 200 篇文章,GAE 费用是 Azure 上的 1200 倍
    min
        2
    min  
       Jul 16, 2013
    刚刚申请了msdn订阅用户的免费额度,等我玩熟了azure再来回复lz ^_^
    jeeson
        3
    jeeson  
    OP
       Jul 16, 2013
    @min 谢谢。

    今天正好会遇到微软这方面的人,有些细节再咨询看看

    AzureBench: Benchmarking the Storage Services of the Azure Cloud Platform:
    http://www.cs.gsu.edu/~dagarwal2/sites/default/files/cloud%20Benchmark.pdf
    ytzong
        4
    ytzong  
       Jul 16, 2013
    支持 .NET 几?
    min
        5
    min  
       Jul 16, 2013
    @ytzong 4.5
    azure上还可以试用windows 2012 r2,总归是支持最新的版本
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