Since you haven't provided any code it's hard to speculate on what may be
going wrong.
On Wed, Sep 9, 2009 at 3:01 PM, rajesh <poorv...@gmail.com> wrote:
>
>
> Hi All,
> I ran some performance tests to compare the performance for
> serializing-persisting-retrieving-desirializing of my POJOs and was
> really surprised to see that java-serialization was performing better
> than protobuf-serialization. Iam enclosing my proto file based on
> which Iam generating my proto buffer messages.
>
> ----------- protofile---------------------------
> option java_package = "com.equifax.ic.eid.iq.persist.generated";
> option java_outer_classname = "AllQuestionPackImplProtos";
> option optimize_for = SPEED;
>
> message AllQuestionPacksImpl{
> optional string transid = 1;
> repeated QuestionPack realQuestionPacks = 2;
> repeated QuestionPack simulatedQuestionPacks = 3;
> }
>
> message QuestionPack{
> optional string transkey = 1;
> optional bool simulated = 2;
> optional GeneratorNameEnum generatorNameType = 3;
> optional PersistableQuestion persistableQuestion = 4;
> repeated PersistableQuestion options = 5;
> optional PersistableHeader persistableHeader = 6;
>
> enum GeneratorNameEnum {
> GENERATOR_CONDITIONAL_CANADA_AUTO = 0;
> GENERATOR_CONDITIONAL_CANADA_GAS_CARD = 1;
> GENERATOR_CONDITIONAL_CANADA_PERSONAL_LINE_OF_CREDIT = 2;
> GENERATOR_CONDITIONAL_CANADA_PERSONAL_LOAN = 3;
> GENERATOR_CONDITIONAL_CANADA_STUDENT_LOAN = 4;
> GENERATOR_FICTIONAL_CANADA_AUTO = 5;
> GENERATOR_FICTIONAL_CANADA_GAS_CARD = 6;
> GENERATOR_FICTIONAL_CANADA_PERSONAL_LINE_OF_CREDIT = 7;
> ...
> ...
> }
> message PersistableHeader {
> optional TextParametrization text = 1;
> }
>
> message TextParametrization{
> optional string asString = 1;
> optional string fixedText = 2;
> repeated Parameter parameter =3;
> optional InteractiveQueryResourceEnum resourceId = 4;
>
> message Parameter{
> optional string value = 1;
> }
>
> enum InteractiveQueryResourceEnum{
> MONTH_1 = 0;
> MONTH_2 = 1;
> MONTH_3 = 2;
> MONTH_4 = 3;
> MONTH_5 = 4;
> MONTH_6 = 5;
> MONTH_7 = 6;
> MONTH_8 = 7;
> ...
> ..
> }
> }
>
> message PersistableQuestion{
> optional bool real = 1;
> repeated PersistableChoice coices = 2;
> optional QuestionType questionType = 3;
> optional PersistableHeader persistableHeader = 4;
> optional TextParametrization text = 5;
>
>
>
>
> message PersistableChoice{
> optional bool correct = 1;
> optional int32 sortOrder = 2;
> optional string simpleText = 3;
> optional TextParametrization resourceTextValue = 4;
>
> }
>
>
> enum QuestionType{
> US_MORTGAGE_PROVIDER_REAL = 0;
> US_MORTGAGE_PROVIDER_FICTIONAL = 1;
> US_MORTGAGE_PAYMENT_REAL = 2;
> US_MORTGAGE_PAYMENT_FICTIONAL = 3;
> US_AUTO_PROVIDER_REAL = 4;
> US_AUTO_PROVIDER_FICTIONAL = 5;
> US_AUTO_PAYMENT_REAL = 6;
> ...
> ...
> }
> }
> }
> ------------protofile-----------------------
>
> To reduce the verbosity I have not included all the elements of my
> Enums. But as you can see I have large enums. I have included the
> option 'option optimize_for = SPEED;' to optimize the proto buffer
> for speed, but in vain. The steps I performed are :
>
> 1) Compiled the proto fileagainst the protobuf binary to generate the
> source.
> 2) Built my proto message Objects based on the source and the POJO.
> 3)Serialized the proto message objects
> 4) Persisted proto message objects to the the Db.
> 5) Retrieved the blob, desirialized to the proto message object.
> 6) Built the pojo back from the proto message object.
>
> Steps 2 + 3 +4 are found to be more performance expensive than if I
> use java serialization to do the same, same for the retrieval
> process.
>
> Is there anything which Iam missing? How do I optimize the proto
> buffer to achieve performance.
>
> Any insights/ help on this is highly appreciated.
>
> Thanks in advance.
>
>
>
>
> >
>
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