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From "Scott Webster (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OLINGO-1302) Performance: Olingo V4 is slower than Olingo V2 when parsing query response body
Date Mon, 15 Oct 2018 22:53:00 GMT

     [ https://issues.apache.org/jira/browse/OLINGO-1302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Scott Webster updated OLINGO-1302:
----------------------------------
    Attachment: TestOlingoV4.Profiling.PNG

> Performance: Olingo V4 is slower than Olingo V2 when parsing query response body
> --------------------------------------------------------------------------------
>
>                 Key: OLINGO-1302
>                 URL: https://issues.apache.org/jira/browse/OLINGO-1302
>             Project: Olingo
>          Issue Type: Bug
>          Components: odata4-client
>    Affects Versions: (Java) V4 4.4.0
>            Reporter: Scott Webster
>            Priority: Critical
>              Labels: performance
>         Attachments: TestOlingoV4.Profiling.PNG, olingo-performance-test.zip
>
>
> The following request to the OData V2 Microsoft NorthWind source returns 500 records
with 26 columns:
>  [http://services.odata.org/V2/Northwind/Northwind.svc/Invoices?$top=500&$format=json]
> The following request to the OData V4 Microsoft NorthWind source returns 500 records
with 26 columns:
>  [http://services.odata.org/V4/Northwind/Northwind.svc/Invoices?$top=500&$format=json]
> When parsing the V2 response by calling the EntityProvider.readFeed() method, the elapsed
time is approximately 180 ms.
> When parsing the V4 response by calling the getODataEntitySet() method, the elapsed time
is approximately 320 ms.
> I have attached a zipped up Eclipse project (olingo-performance-test) which contains
two Java programs (TestOlingoV2.java, TestOlingoV4.java).
> These programs can be run to compare the performance of the JSON deserialization in Olingo
V2 and V4.
> The Northwind metadata and the JSON response body are read from files included in the
project.
>  
>  



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