[Building Sakai] Any Comments on org.codehaus.jackson ??

[Aaron Zeckoski]

Doh! you have the options right there: *JVM options:* -Xmx32m -server
Ignore that part of my questions.
:-)
-AZ

On Thu, Jun 20, 2013 at 2:29 PM, Aaron Zeckoski <azeckoski at unicon.net> wrote:
>
> Zach,
> This is very helpful. Thanks for doing this.
>
> Those are the numbers for processing 3250 items right?
>
> Did you have a chance to monitor memory usage during the tests? I don't have a great solution for that but I am curious if the memory profiles are different or generally consistent.
>
> Also, do you think it would be worth testing another typical Sakai case where the objects being serialized are actually a series of maps with strings, numbers and the like in them? I would be curious to see how that varies from the POJO test (if it all, ideally it would not vary).
>
> Final question, any JVM settings or just OOTB Java 6?
>
> -AZ
>
>
>
> On Thu, Jun 20, 2013 at 2:08 PM, Zach A. Thomas <zach.thomas at gmail.com> wrote:
>>
>> On Jun 19, 2013, at 6:27 PM, Steve Swinsburg <steve.swinsburg at gmail.com> wrote:
>>
>> Here's another perf comparison
>>
>> http://blog.novoj.net/2012/02/05/json-java-parsers-generators-microbenchmark/
>>
>> Sent from my iPhone
>>
>>
>> I forked his benchmark[1], updated all the libraries to their current versions, and modified it so it would work with reflectutils.
>>
>> Here's what I came up with. The numbers are time (in milliseconds) spent chewing through roughly 170Mb of JSON. In case the rich text tables don't convey, I also have an image: http://cl.ly/Pm1A
>>
>> Serializing
>> Jackson
>> 685
>> Protostuff
>> 917
>> FastJson
>> 952
>> Gson
>> 1881
>> JsonMarshaller
>> 2050
>> JsonSmart
>> 2240
>> Staxon-Jackson
>> 2680
>> FlexJson
>> 3798
>> Staxon-JsonStream
>> 4123
>> reflectutils
>> 4321
>> JsonLib
>> 7421
>> XStream
>> 43211
>>
>> Deserializing
>> FastJson
>> 459
>> Protostuff
>> 886
>> Jackson
>> 888
>> Gson
>> 2170
>> reflectutils
>> 2708
>> JsonMarshaller
>> 4047
>> FlexJson
>> 4462
>> Staxon-Jackson
>> 8428
>> Staxon-JsonStream
>> 10817
>> XStream
>> 22109
>> JsonLib
>> 71124
>> JsonSmart
>> error
>>
>> Jackson is impressive, but not dominating. The results make me very curious about Protostuff, which I had never heard of before: https://code.google.com/p/protostuff/
>>
>> Zach
>>
>> [1] https://github.com/zathomas/JavaJsonPerformanceTest
>>
>>
>
>
>
> --
> Aaron Zeckoski - Software Architect - http://tinyurl.com/azprofile




--
Aaron Zeckoski - Software Architect - http://tinyurl.com/azprofile